---
_id: '29895'
author:
- first_name: Bastian
  full_name: Korthauer, Bastian
  last_name: Korthauer
- first_name: Philipp
  full_name: Rehlaender, Philipp
  id: '69469'
  last_name: Rehlaender
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Korthauer B, Rehlaender P, Schafmeister F, Böcker J. Design and Analysis of
    a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter with Low-Voltage
    Output. In: <i>2021 IEEE Applied Power Electronics Conference and Exposition (APEC)</i>.
    IEEE; 2021. doi:<a href="https://doi.org/10.1109/apec42165.2021.9487130">10.1109/apec42165.2021.9487130</a>'
  apa: Korthauer, B., Rehlaender, P., Schafmeister, F., &#38; Böcker, J. (2021). Design
    and Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter
    with Low-Voltage Output. <i>2021 IEEE Applied Power Electronics Conference and
    Exposition (APEC)</i>. <a href="https://doi.org/10.1109/apec42165.2021.9487130">https://doi.org/10.1109/apec42165.2021.9487130</a>
  bibtex: '@inproceedings{Korthauer_Rehlaender_Schafmeister_Böcker_2021, title={Design
    and Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter
    with Low-Voltage Output}, DOI={<a href="https://doi.org/10.1109/apec42165.2021.9487130">10.1109/apec42165.2021.9487130</a>},
    booktitle={2021 IEEE Applied Power Electronics Conference and Exposition (APEC)},
    publisher={IEEE}, author={Korthauer, Bastian and Rehlaender, Philipp and Schafmeister,
    Frank and Böcker, Joachim}, year={2021} }'
  chicago: Korthauer, Bastian, Philipp Rehlaender, Frank Schafmeister, and Joachim
    Böcker. “Design and Analysis of a Regenerative Snubber for a 2.2 KW Active-Clamp
    Forward Converter with Low-Voltage Output.” In <i>2021 IEEE Applied Power Electronics
    Conference and Exposition (APEC)</i>. IEEE, 2021. <a href="https://doi.org/10.1109/apec42165.2021.9487130">https://doi.org/10.1109/apec42165.2021.9487130</a>.
  ieee: 'B. Korthauer, P. Rehlaender, F. Schafmeister, and J. Böcker, “Design and
    Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter
    with Low-Voltage Output,” 2021, doi: <a href="https://doi.org/10.1109/apec42165.2021.9487130">10.1109/apec42165.2021.9487130</a>.'
  mla: Korthauer, Bastian, et al. “Design and Analysis of a Regenerative Snubber for
    a 2.2 KW Active-Clamp Forward Converter with Low-Voltage Output.” <i>2021 IEEE
    Applied Power Electronics Conference and Exposition (APEC)</i>, IEEE, 2021, doi:<a
    href="https://doi.org/10.1109/apec42165.2021.9487130">10.1109/apec42165.2021.9487130</a>.
  short: 'B. Korthauer, P. Rehlaender, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied
    Power Electronics Conference and Exposition (APEC), IEEE, 2021.'
date_created: 2022-02-20T21:20:14Z
date_updated: 2022-02-22T08:28:24Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/apec42165.2021.9487130
language:
- iso: eng
publication: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
publication_status: published
publisher: IEEE
status: public
title: Design and Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward
  Converter with Low-Voltage Output
type: conference
user_id: '66'
year: '2021'
...
---
_id: '29850'
abstract:
- lang: eng
  text: 'In electric vehicles (EV) the large common-mode (CM) capacitance comprising
    capacitive parasitics of the traction battery as well as explicit Y-capacitors
    connecting within specific loads the high-voltage DC-system (HV-system) to ground,
    can cause issues when using non-isolated EV Chargers. One solution for a power
    factor correction (PFC) rectifier that is capable to operate with a non-isolated
    DC-DC converter, is the three-phase four-wire full-bridge PFC, with split DC-link,
    whose midpoint is connected to the mains neutral. Therefore, it provides very
    stable potentials at the DC-link rails and accordingly can be classified as Zero-CM
    topology, which facilitates a common-mode-free operation. When to be operated
    at a single-phase supply, which is a common requirement for On-board chargers
    (OBCs) this topology results in the voltage-doubler PFC (V2-PFC) being characterised
    by a comparably large DC-link voltage ripple at mains frequency. If the DC-link
    capacitance shall be minimized, for instance to avoid lifetime-limited electrolytic
    capacitors, two more circuits in addition to the original V2-PFC are proposed
    for keeping the common-mode-free operation: A balancing circuit (BC), that balances
    the voltages over the split capacitors and a ripple port (RP), that buffers the
    100 Hz power pulsation of the mains. For both circuits the available two bridge
    legs of the three-phase topology in single-phase operation may be utilized. A
    3.7 kW laboratory sample verifies the functionality of the additional circuits
    in conjunction with the V2-PFC and achieves an efficiency of 95 %.'
author:
- first_name: Benjamin
  full_name: Strothmann, Benjamin
  id: '22556'
  last_name: Strothmann
- first_name: Gerrit
  full_name: Book, Gerrit
  last_name: Book
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Strothmann B, Book G, Schafmeister F, Böcker J. Single-Phase Operation of
    Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV Charger
    with Minimized DC-Link. In: <i>PCIM Europe Digital Days 2021; International Exhibition
    and Conference for Power Electronics, Intelligent Motion, Renewable Energy and
    Energy Management</i>. ; 2021:1-8.'
  apa: Strothmann, B., Book, G., Schafmeister, F., &#38; Böcker, J. (2021). Single-Phase
    Operation of Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated
    EV Charger with Minimized DC-Link. <i>PCIM Europe Digital Days 2021; International
    Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable
    Energy and Energy Management</i>, 1–8.
  bibtex: '@inproceedings{Strothmann_Book_Schafmeister_Böcker_2021, title={Single-Phase
    Operation of Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated
    EV Charger with Minimized DC-Link}, booktitle={PCIM Europe digital days 2021;
    International Exhibition and Conference for Power Electronics, Intelligent Motion,
    Renewable Energy and Energy Management}, author={Strothmann, Benjamin and Book,
    Gerrit and Schafmeister, Frank and Böcker, Joachim}, year={2021}, pages={1–8}
    }'
  chicago: Strothmann, Benjamin, Gerrit Book, Frank Schafmeister, and Joachim Böcker.
    “Single-Phase Operation of Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier
    for Non-Isolated EV Charger with Minimized DC-Link.” In <i>PCIM Europe Digital
    Days 2021; International Exhibition and Conference for Power Electronics, Intelligent
    Motion, Renewable Energy and Energy Management</i>, 1–8, 2021.
  ieee: B. Strothmann, G. Book, F. Schafmeister, and J. Böcker, “Single-Phase Operation
    of Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV
    Charger with Minimized DC-Link,” in <i>PCIM Europe digital days 2021; International
    Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable
    Energy and Energy Management</i>, 2021, pp. 1–8.
  mla: Strothmann, Benjamin, et al. “Single-Phase Operation of Common-Mode-Free Bidirectional
    Three-Phase PFC-Rectifier for Non-Isolated EV Charger with Minimized DC-Link.”
    <i>PCIM Europe Digital Days 2021; International Exhibition and Conference for
    Power Electronics, Intelligent Motion, Renewable Energy and Energy Management</i>,
    2021, pp. 1–8.
  short: 'B. Strothmann, G. Book, F. Schafmeister, J. Böcker, in: PCIM Europe Digital
    Days 2021; International Exhibition and Conference for Power Electronics, Intelligent
    Motion, Renewable Energy and Energy Management, 2021, pp. 1–8.'
date_created: 2022-02-15T10:25:25Z
date_updated: 2022-02-23T15:45:03Z
department:
- _id: '52'
language:
- iso: eng
main_file_link:
- url: https://www.vde-verlag.de/proceedings-de/565515130.html
page: 1-8
publication: PCIM Europe digital days 2021; International Exhibition and Conference
  for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
publication_status: published
status: public
title: Single-Phase Operation of Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier
  for Non-Isolated EV Charger with Minimized DC-Link
type: conference
user_id: '66'
year: '2021'
...
---
_id: '29871'
abstract:
- lang: eng
  text: "LLC resonant converters typically employ power\r\nMOSFETs in their inverter
    stage. The generally weak reverse\r\nrecovery behaviour of the intrinsic body
    diodes of those\r\nMOSFETs causes significant turn-on losses when being forced\r\nto
    hard commutations. Continuous operation in this way will\r\nlead to self-destruction
    of the transistors. Consequently,\r\nzero-voltage switching (ZVS) is essential
    in a MOSFET-based\r\ninverter stage. To ensure ZVS, the LLC converter is operated
    in\r\nthe inductive region. On the contrary, IGBTs show dominant\r\nturn-off losses
    and are therefore conventionally not applied in\r\nLLC converters typically requiring
    high switching frequencies\r\nto achieve low output voltages. However, if the
    LLC converter\r\nis intentionally designed for capacitive operation, zero-current\r\nswitching
    (ZCS) is enabled and thus robust and cost-efficient\r\nIGBTs can be applied in
    the inverter stage. The aim of this work\r\nis to investigate the use IGBTs in
    the inverter of an LLC\r\nconverter. The theory behind the capacitive operated
    LLC is\r\nderived using a switched simulation model and compared with\r\nthe fundamental
    harmonic approximation (FHA). The results\r\nprove FHA to be useless for practical
    converter design. Instead,\r\na stress value analysis based on switched model
    simulations is\r\nproposed to the design a capacitive operated LLC utilizing ZCS.\r\nA
    2 kW prototype for on-board EV applications was built to\r\nverify the theory
    and design approach. The prototype confirms\r\nthe derived theory and thus the
    deployment of IGBTs in the\r\ninverter stage of LLC resonant converters. Synchronous\r\nrectification
    turns out to require a specific control solution, but\r\nif given the resulting
    efficiency in the most critical operation\r\npoint exceeds the value of a MOSFET-based
    (inductive\r\noperated) LLC-design of an identical application. Therefore,\r\nthis
    concept should be further developed."
author:
- first_name: Daniel
  full_name: Urbaneck, Daniel
  id: '60223'
  last_name: Urbaneck
- first_name: Philipp
  full_name: Rehlaender, Philipp
  id: '69469'
  last_name: Rehlaender
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
citation:
  ama: 'Urbaneck D, Rehlaender P, Böcker J, Schafmeister F. LLC Converter in Capacitive
    Operation Utilizing ZCS for IGBTs – Theory, Concept and Verification of a 2 kW
    DC-DC Converter for EVs. In: <i>2021 IEEE Applied Power Electronics Conference
    and Exposition (APEC)</i>. ; 2021.'
  apa: Urbaneck, D., Rehlaender, P., Böcker, J., &#38; Schafmeister, F. (2021). LLC
    Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and
    Verification of a 2 kW DC-DC Converter for EVs. <i>2021 IEEE Applied Power Electronics
    Conference and Exposition (APEC)</i>. Applied Power Electronics Conference (APEC),
    Arizona.
  bibtex: '@inproceedings{Urbaneck_Rehlaender_Böcker_Schafmeister_2021, title={LLC
    Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and
    Verification of a 2 kW DC-DC Converter for EVs}, booktitle={2021 IEEE Applied
    Power Electronics Conference and Exposition (APEC)}, author={Urbaneck, Daniel
    and Rehlaender, Philipp and Böcker, Joachim and Schafmeister, Frank}, year={2021}
    }'
  chicago: Urbaneck, Daniel, Philipp Rehlaender, Joachim Böcker, and Frank Schafmeister.
    “LLC Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept
    and Verification of a 2 KW DC-DC Converter for EVs.” In <i>2021 IEEE Applied Power
    Electronics Conference and Exposition (APEC)</i>, 2021.
  ieee: D. Urbaneck, P. Rehlaender, J. Böcker, and F. Schafmeister, “LLC Converter
    in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and Verification
    of a 2 kW DC-DC Converter for EVs,” presented at the Applied Power Electronics
    Conference (APEC), Arizona, 2021.
  mla: Urbaneck, Daniel, et al. “LLC Converter in Capacitive Operation Utilizing ZCS
    for IGBTs – Theory, Concept and Verification of a 2 KW DC-DC Converter for EVs.”
    <i>2021 IEEE Applied Power Electronics Conference and Exposition (APEC)</i>, 2021.
  short: 'D. Urbaneck, P. Rehlaender, J. Böcker, F. Schafmeister, in: 2021 IEEE Applied
    Power Electronics Conference and Exposition (APEC), 2021.'
conference:
  end_date: 2021-06-17
  location: Arizona
  name: Applied Power Electronics Conference (APEC)
  start_date: 2021-06-14
date_created: 2022-02-18T09:36:01Z
date_updated: 2022-02-23T16:12:38Z
ddc:
- '620'
department:
- _id: '52'
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9487109
publication: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
publication_status: published
status: public
title: LLC Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept
  and Verification of a 2 kW DC-DC Converter for EVs
type: conference
user_id: '60223'
year: '2021'
...
---
_id: '30030'
author:
- first_name: Marius
  full_name: Stender, Marius
  id: '41240'
  last_name: Stender
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: Stender M, Wallscheid O, Böcker J. Accurate Torque Control for Induction Motors
    by Utilizing a Globally Optimized Flux Observer. <i>IEEE Transactions on Power
    Electronics</i>. 2021;36(11):13261-13274. doi:<a href="https://doi.org/10.1109/tpel.2021.3080129">10.1109/tpel.2021.3080129</a>
  apa: Stender, M., Wallscheid, O., &#38; Böcker, J. (2021). Accurate Torque Control
    for Induction Motors by Utilizing a Globally Optimized Flux Observer. <i>IEEE
    Transactions on Power Electronics</i>, <i>36</i>(11), 13261–13274. <a href="https://doi.org/10.1109/tpel.2021.3080129">https://doi.org/10.1109/tpel.2021.3080129</a>
  bibtex: '@article{Stender_Wallscheid_Böcker_2021, title={Accurate Torque Control
    for Induction Motors by Utilizing a Globally Optimized Flux Observer}, volume={36},
    DOI={<a href="https://doi.org/10.1109/tpel.2021.3080129">10.1109/tpel.2021.3080129</a>},
    number={11}, journal={IEEE Transactions on Power Electronics}, publisher={Institute
    of Electrical and Electronics Engineers (IEEE)}, author={Stender, Marius and Wallscheid,
    Oliver and Böcker, Joachim}, year={2021}, pages={13261–13274} }'
  chicago: 'Stender, Marius, Oliver Wallscheid, and Joachim Böcker. “Accurate Torque
    Control for Induction Motors by Utilizing a Globally Optimized Flux Observer.”
    <i>IEEE Transactions on Power Electronics</i> 36, no. 11 (2021): 13261–74. <a
    href="https://doi.org/10.1109/tpel.2021.3080129">https://doi.org/10.1109/tpel.2021.3080129</a>.'
  ieee: 'M. Stender, O. Wallscheid, and J. Böcker, “Accurate Torque Control for Induction
    Motors by Utilizing a Globally Optimized Flux Observer,” <i>IEEE Transactions
    on Power Electronics</i>, vol. 36, no. 11, pp. 13261–13274, 2021, doi: <a href="https://doi.org/10.1109/tpel.2021.3080129">10.1109/tpel.2021.3080129</a>.'
  mla: Stender, Marius, et al. “Accurate Torque Control for Induction Motors by Utilizing
    a Globally Optimized Flux Observer.” <i>IEEE Transactions on Power Electronics</i>,
    vol. 36, no. 11, Institute of Electrical and Electronics Engineers (IEEE), 2021,
    pp. 13261–74, doi:<a href="https://doi.org/10.1109/tpel.2021.3080129">10.1109/tpel.2021.3080129</a>.
  short: M. Stender, O. Wallscheid, J. Böcker, IEEE Transactions on Power Electronics
    36 (2021) 13261–13274.
date_created: 2022-02-24T09:22:37Z
date_updated: 2022-02-24T09:23:30Z
department:
- _id: '52'
doi: 10.1109/tpel.2021.3080129
intvolume: '        36'
issue: '11'
keyword:
- Electrical and Electronic Engineering
language:
- iso: eng
page: 13261-13274
publication: IEEE Transactions on Power Electronics
publication_identifier:
  issn:
  - 0885-8993
  - 1941-0107
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: Accurate Torque Control for Induction Motors by Utilizing a Globally Optimized
  Flux Observer
type: journal_article
user_id: '41240'
volume: 36
year: '2021'
...
---
_id: '30031'
author:
- first_name: Marius
  full_name: Stender, Marius
  id: '41240'
  last_name: Stender
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Stender M, Wallscheid O, Böcker J. Accurate Torque Estimation for Induction
    Motors by Utilizing a Hybrid Machine Learning Approach. In: <i>2021 IEEE 19th
    International Power Electronics and Motion Control Conference (PEMC)</i>. IEEE;
    2021. doi:<a href="https://doi.org/10.1109/pemc48073.2021.9432615">10.1109/pemc48073.2021.9432615</a>'
  apa: Stender, M., Wallscheid, O., &#38; Böcker, J. (2021). Accurate Torque Estimation
    for Induction Motors by Utilizing a Hybrid Machine Learning Approach. <i>2021
    IEEE 19th International Power Electronics and Motion Control Conference (PEMC)</i>.
    <a href="https://doi.org/10.1109/pemc48073.2021.9432615">https://doi.org/10.1109/pemc48073.2021.9432615</a>
  bibtex: '@inproceedings{Stender_Wallscheid_Böcker_2021, title={Accurate Torque Estimation
    for Induction Motors by Utilizing a Hybrid Machine Learning Approach}, DOI={<a
    href="https://doi.org/10.1109/pemc48073.2021.9432615">10.1109/pemc48073.2021.9432615</a>},
    booktitle={2021 IEEE 19th International Power Electronics and Motion Control Conference
    (PEMC)}, publisher={IEEE}, author={Stender, Marius and Wallscheid, Oliver and
    Böcker, Joachim}, year={2021} }'
  chicago: Stender, Marius, Oliver Wallscheid, and Joachim Böcker. “Accurate Torque
    Estimation for Induction Motors by Utilizing a Hybrid Machine Learning Approach.”
    In <i>2021 IEEE 19th International Power Electronics and Motion Control Conference
    (PEMC)</i>. IEEE, 2021. <a href="https://doi.org/10.1109/pemc48073.2021.9432615">https://doi.org/10.1109/pemc48073.2021.9432615</a>.
  ieee: 'M. Stender, O. Wallscheid, and J. Böcker, “Accurate Torque Estimation for
    Induction Motors by Utilizing a Hybrid Machine Learning Approach,” 2021, doi:
    <a href="https://doi.org/10.1109/pemc48073.2021.9432615">10.1109/pemc48073.2021.9432615</a>.'
  mla: Stender, Marius, et al. “Accurate Torque Estimation for Induction Motors by
    Utilizing a Hybrid Machine Learning Approach.” <i>2021 IEEE 19th International
    Power Electronics and Motion Control Conference (PEMC)</i>, IEEE, 2021, doi:<a
    href="https://doi.org/10.1109/pemc48073.2021.9432615">10.1109/pemc48073.2021.9432615</a>.
  short: 'M. Stender, O. Wallscheid, J. Böcker, in: 2021 IEEE 19th International Power
    Electronics and Motion Control Conference (PEMC), IEEE, 2021.'
date_created: 2022-02-24T09:23:50Z
date_updated: 2022-02-24T09:24:22Z
department:
- _id: '52'
doi: 10.1109/pemc48073.2021.9432615
language:
- iso: eng
publication: 2021 IEEE 19th International Power Electronics and Motion Control Conference
  (PEMC)
publication_status: published
publisher: IEEE
status: public
title: Accurate Torque Estimation for Induction Motors by Utilizing a Hybrid Machine
  Learning Approach
type: conference
user_id: '41240'
year: '2021'
...
---
_id: '30029'
author:
- first_name: Marius
  full_name: Stender, Marius
  id: '41240'
  last_name: Stender
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Stender M, Wallscheid O, Böcker J. Combined Electrical-Thermal Gray-Box Model
    and Parameter Identification of an Induction Motor. In: <i>IECON 2021 – 47th Annual
    Conference of the IEEE Industrial Electronics Society</i>. IEEE; 2021. doi:<a
    href="https://doi.org/10.1109/iecon48115.2021.9589225">10.1109/iecon48115.2021.9589225</a>'
  apa: Stender, M., Wallscheid, O., &#38; Böcker, J. (2021). Combined Electrical-Thermal
    Gray-Box Model and Parameter Identification of an Induction Motor. <i>IECON 2021
    – 47th Annual Conference of the IEEE Industrial Electronics Society</i>. <a href="https://doi.org/10.1109/iecon48115.2021.9589225">https://doi.org/10.1109/iecon48115.2021.9589225</a>
  bibtex: '@inproceedings{Stender_Wallscheid_Böcker_2021, title={Combined Electrical-Thermal
    Gray-Box Model and Parameter Identification of an Induction Motor}, DOI={<a href="https://doi.org/10.1109/iecon48115.2021.9589225">10.1109/iecon48115.2021.9589225</a>},
    booktitle={IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics
    Society}, publisher={IEEE}, author={Stender, Marius and Wallscheid, Oliver and
    Böcker, Joachim}, year={2021} }'
  chicago: Stender, Marius, Oliver Wallscheid, and Joachim Böcker. “Combined Electrical-Thermal
    Gray-Box Model and Parameter Identification of an Induction Motor.” In <i>IECON
    2021 – 47th Annual Conference of the IEEE Industrial Electronics Society</i>.
    IEEE, 2021. <a href="https://doi.org/10.1109/iecon48115.2021.9589225">https://doi.org/10.1109/iecon48115.2021.9589225</a>.
  ieee: 'M. Stender, O. Wallscheid, and J. Böcker, “Combined Electrical-Thermal Gray-Box
    Model and Parameter Identification of an Induction Motor,” 2021, doi: <a href="https://doi.org/10.1109/iecon48115.2021.9589225">10.1109/iecon48115.2021.9589225</a>.'
  mla: Stender, Marius, et al. “Combined Electrical-Thermal Gray-Box Model and Parameter
    Identification of an Induction Motor.” <i>IECON 2021 – 47th Annual Conference
    of the IEEE Industrial Electronics Society</i>, IEEE, 2021, doi:<a href="https://doi.org/10.1109/iecon48115.2021.9589225">10.1109/iecon48115.2021.9589225</a>.
  short: 'M. Stender, O. Wallscheid, J. Böcker, in: IECON 2021 – 47th Annual Conference
    of the IEEE Industrial Electronics Society, IEEE, 2021.'
date_created: 2022-02-24T09:13:22Z
date_updated: 2022-02-24T09:22:03Z
department:
- _id: '52'
doi: 10.1109/iecon48115.2021.9589225
language:
- iso: eng
publication: IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics
  Society
publication_status: published
publisher: IEEE
status: public
title: Combined Electrical-Thermal Gray-Box Model and Parameter Identification of
  an Induction Motor
type: conference
user_id: '41240'
year: '2021'
...
---
_id: '30032'
author:
- first_name: Marius
  full_name: Stender, Marius
  id: '41240'
  last_name: Stender
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Stender M, Wallscheid O, Böcker J. Gray-Box Loss Model for Induction Motor
    Drives. In: <i>2021 IEEE 19th International Power Electronics and Motion Control
    Conference (PEMC)</i>. IEEE; 2021. doi:<a href="https://doi.org/10.1109/pemc48073.2021.9432491">10.1109/pemc48073.2021.9432491</a>'
  apa: Stender, M., Wallscheid, O., &#38; Böcker, J. (2021). Gray-Box Loss Model for
    Induction Motor Drives. <i>2021 IEEE 19th International Power Electronics and
    Motion Control Conference (PEMC)</i>. <a href="https://doi.org/10.1109/pemc48073.2021.9432491">https://doi.org/10.1109/pemc48073.2021.9432491</a>
  bibtex: '@inproceedings{Stender_Wallscheid_Böcker_2021, title={Gray-Box Loss Model
    for Induction Motor Drives}, DOI={<a href="https://doi.org/10.1109/pemc48073.2021.9432491">10.1109/pemc48073.2021.9432491</a>},
    booktitle={2021 IEEE 19th International Power Electronics and Motion Control Conference
    (PEMC)}, publisher={IEEE}, author={Stender, Marius and Wallscheid, Oliver and
    Böcker, Joachim}, year={2021} }'
  chicago: Stender, Marius, Oliver Wallscheid, and Joachim Böcker. “Gray-Box Loss
    Model for Induction Motor Drives.” In <i>2021 IEEE 19th International Power Electronics
    and Motion Control Conference (PEMC)</i>. IEEE, 2021. <a href="https://doi.org/10.1109/pemc48073.2021.9432491">https://doi.org/10.1109/pemc48073.2021.9432491</a>.
  ieee: 'M. Stender, O. Wallscheid, and J. Böcker, “Gray-Box Loss Model for Induction
    Motor Drives,” 2021, doi: <a href="https://doi.org/10.1109/pemc48073.2021.9432491">10.1109/pemc48073.2021.9432491</a>.'
  mla: Stender, Marius, et al. “Gray-Box Loss Model for Induction Motor Drives.” <i>2021
    IEEE 19th International Power Electronics and Motion Control Conference (PEMC)</i>,
    IEEE, 2021, doi:<a href="https://doi.org/10.1109/pemc48073.2021.9432491">10.1109/pemc48073.2021.9432491</a>.
  short: 'M. Stender, O. Wallscheid, J. Böcker, in: 2021 IEEE 19th International Power
    Electronics and Motion Control Conference (PEMC), IEEE, 2021.'
date_created: 2022-02-24T09:25:23Z
date_updated: 2022-02-24T09:25:49Z
department:
- _id: '52'
doi: 10.1109/pemc48073.2021.9432491
language:
- iso: eng
publication: 2021 IEEE 19th International Power Electronics and Motion Control Conference
  (PEMC)
publication_status: published
publisher: IEEE
status: public
title: Gray-Box Loss Model for Induction Motor Drives
type: conference
user_id: '41240'
year: '2021'
...
---
_id: '29665'
author:
- first_name: Sören
  full_name: Hanke, Sören
  id: '25027'
  last_name: Hanke
  orcid: 0000-0001-8216-1278
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Hanke S, Wallscheid O, Böcker J. Comparison of Artificial Neural Network and
    Least Squares Prediction Models for Finite-Control-Set Model Predictive Control
    of a Permanent Magnet Synchronous Motor. In: IET Digital Library; 2021. doi:<a
    href="https://doi.org/10.1049%2Ficp.2021.1122">10.1049%2Ficp.2021.1122</a>'
  apa: Hanke, S., Wallscheid, O., &#38; Böcker, J. (2021). <i>Comparison of Artificial
    Neural Network and Least Squares Prediction Models for Finite-Control-Set Model
    Predictive Control of a Permanent Magnet Synchronous Motor</i>. <a href="https://doi.org/10.1049%2Ficp.2021.1122">https://doi.org/10.1049%2Ficp.2021.1122</a>
  bibtex: '@inproceedings{Hanke_Wallscheid_Böcker_2021, title={Comparison of Artificial
    Neural Network and Least Squares Prediction Models for Finite-Control-Set Model
    Predictive Control of a Permanent Magnet Synchronous Motor}, DOI={<a href="https://doi.org/10.1049%2Ficp.2021.1122">10.1049%2Ficp.2021.1122</a>},
    publisher={IET Digital Library}, author={Hanke, Sören and Wallscheid, Oliver and
    Böcker, Joachim}, year={2021} }'
  chicago: Hanke, Sören, Oliver Wallscheid, and Joachim Böcker. “Comparison of Artificial
    Neural Network and Least Squares Prediction Models for Finite-Control-Set Model
    Predictive Control of a Permanent Magnet Synchronous Motor.” IET Digital Library,
    2021. <a href="https://doi.org/10.1049%2Ficp.2021.1122">https://doi.org/10.1049%2Ficp.2021.1122</a>.
  ieee: 'S. Hanke, O. Wallscheid, and J. Böcker, “Comparison of Artificial Neural
    Network and Least Squares Prediction Models for Finite-Control-Set Model Predictive
    Control of a Permanent Magnet Synchronous Motor,” 2021, doi: <a href="https://doi.org/10.1049%2Ficp.2021.1122">10.1049%2Ficp.2021.1122</a>.'
  mla: Hanke, Sören, et al. <i>Comparison of Artificial Neural Network and Least Squares
    Prediction Models for Finite-Control-Set Model Predictive Control of a Permanent
    Magnet Synchronous Motor</i>. IET Digital Library, 2021, doi:<a href="https://doi.org/10.1049%2Ficp.2021.1122">10.1049%2Ficp.2021.1122</a>.
  short: 'S. Hanke, O. Wallscheid, J. Böcker, in: IET Digital Library, 2021.'
date_created: 2022-01-28T14:11:09Z
date_updated: 2022-02-24T17:08:20Z
department:
- _id: '52'
doi: 10.1049%2Ficp.2021.1122
language:
- iso: eng
publication_status: published
publisher: IET Digital Library
status: public
title: Comparison of Artificial Neural Network and Least Squares Prediction Models
  for Finite-Control-Set Model Predictive Control of a Permanent Magnet Synchronous
  Motor
type: conference
user_id: '66'
year: '2021'
...
---
_id: '21251'
author:
- first_name: Wilhelm
  full_name: Kirchgässner, Wilhelm
  id: '49265'
  last_name: Kirchgässner
  orcid: 0000-0001-9490-1843
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Kirchgässner W, Wallscheid O, Böcker J. Data-Driven Permanent Magnet Temperature
    Estimation in Synchronous Motors with Supervised Machine Learning: A Benchmark.
    <i>IEEE Transactions on Energy Conversion</i>. 2021;36(3):2059-2067. doi:<a href="https://doi.org/10.1109/tec.2021.3052546">10.1109/tec.2021.3052546</a>'
  apa: 'Kirchgässner, W., Wallscheid, O., &#38; Böcker, J. (2021). Data-Driven Permanent
    Magnet Temperature Estimation in Synchronous Motors with Supervised Machine Learning:
    A Benchmark. <i>IEEE Transactions on Energy Conversion</i>, <i>36</i>(3), 2059–2067.
    <a href="https://doi.org/10.1109/tec.2021.3052546">https://doi.org/10.1109/tec.2021.3052546</a>'
  bibtex: '@article{Kirchgässner_Wallscheid_Böcker_2021, title={Data-Driven Permanent
    Magnet Temperature Estimation in Synchronous Motors with Supervised Machine Learning:
    A Benchmark}, volume={36}, DOI={<a href="https://doi.org/10.1109/tec.2021.3052546">10.1109/tec.2021.3052546</a>},
    number={3}, journal={IEEE Transactions on Energy Conversion}, author={Kirchgässner,
    Wilhelm and Wallscheid, Oliver and Böcker, Joachim}, year={2021}, pages={2059–2067}
    }'
  chicago: 'Kirchgässner, Wilhelm, Oliver Wallscheid, and Joachim Böcker. “Data-Driven
    Permanent Magnet Temperature Estimation in Synchronous Motors with Supervised
    Machine Learning: A Benchmark.” <i>IEEE Transactions on Energy Conversion</i>
    36, no. 3 (2021): 2059–67. <a href="https://doi.org/10.1109/tec.2021.3052546">https://doi.org/10.1109/tec.2021.3052546</a>.'
  ieee: 'W. Kirchgässner, O. Wallscheid, and J. Böcker, “Data-Driven Permanent Magnet
    Temperature Estimation in Synchronous Motors with Supervised Machine Learning:
    A Benchmark,” <i>IEEE Transactions on Energy Conversion</i>, vol. 36, no. 3, pp.
    2059–2067, 2021, doi: <a href="https://doi.org/10.1109/tec.2021.3052546">10.1109/tec.2021.3052546</a>.'
  mla: 'Kirchgässner, Wilhelm, et al. “Data-Driven Permanent Magnet Temperature Estimation
    in Synchronous Motors with Supervised Machine Learning: A Benchmark.” <i>IEEE
    Transactions on Energy Conversion</i>, vol. 36, no. 3, 2021, pp. 2059–67, doi:<a
    href="https://doi.org/10.1109/tec.2021.3052546">10.1109/tec.2021.3052546</a>.'
  short: W. Kirchgässner, O. Wallscheid, J. Böcker, IEEE Transactions on Energy Conversion
    36 (2021) 2059–2067.
date_created: 2021-02-16T21:22:46Z
date_updated: 2022-02-25T20:31:46Z
department:
- _id: '52'
doi: 10.1109/tec.2021.3052546
intvolume: '        36'
issue: '3'
language:
- iso: eng
page: 2059 - 2067
publication: IEEE Transactions on Energy Conversion
publication_identifier:
  issn:
  - 0885-8969
  - 1558-0059
publication_status: published
status: public
title: 'Data-Driven Permanent Magnet Temperature Estimation in Synchronous Motors
  with Supervised Machine Learning: A Benchmark'
type: journal_article
user_id: '11291'
volume: 36
year: '2021'
...
---
_id: '21557'
author:
- first_name: Anian
  full_name: Brosch, Anian
  id: '75779'
  last_name: Brosch
  orcid: 0000-0003-4871-1664
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: Brosch A, Wallscheid O, Böcker J. Torque and Inductances Estimation for Finite
    Model Predictive Control of Highly Utilized Permanent Magnet Synchronous Motors.
    <i>IEEE Transactions on Industrial Informatics</i>. Published online 2021. doi:<a
    href="https://doi.org/10.1109/tii.2021.3060469">10.1109/tii.2021.3060469</a>
  apa: Brosch, A., Wallscheid, O., &#38; Böcker, J. (2021). Torque and Inductances
    Estimation for Finite Model Predictive Control of Highly Utilized Permanent Magnet
    Synchronous Motors. <i>IEEE Transactions on Industrial Informatics</i>. <a href="https://doi.org/10.1109/tii.2021.3060469">https://doi.org/10.1109/tii.2021.3060469</a>
  bibtex: '@article{Brosch_Wallscheid_Böcker_2021, title={Torque and Inductances Estimation
    for Finite Model Predictive Control of Highly Utilized Permanent Magnet Synchronous
    Motors}, DOI={<a href="https://doi.org/10.1109/tii.2021.3060469">10.1109/tii.2021.3060469</a>},
    journal={IEEE Transactions on Industrial Informatics}, author={Brosch, Anian and
    Wallscheid, Oliver and Böcker, Joachim}, year={2021} }'
  chicago: Brosch, Anian, Oliver Wallscheid, and Joachim Böcker. “Torque and Inductances
    Estimation for Finite Model Predictive Control of Highly Utilized Permanent Magnet
    Synchronous Motors.” <i>IEEE Transactions on Industrial Informatics</i>, 2021.
    <a href="https://doi.org/10.1109/tii.2021.3060469">https://doi.org/10.1109/tii.2021.3060469</a>.
  ieee: 'A. Brosch, O. Wallscheid, and J. Böcker, “Torque and Inductances Estimation
    for Finite Model Predictive Control of Highly Utilized Permanent Magnet Synchronous
    Motors,” <i>IEEE Transactions on Industrial Informatics</i>, 2021, doi: <a href="https://doi.org/10.1109/tii.2021.3060469">10.1109/tii.2021.3060469</a>.'
  mla: Brosch, Anian, et al. “Torque and Inductances Estimation for Finite Model Predictive
    Control of Highly Utilized Permanent Magnet Synchronous Motors.” <i>IEEE Transactions
    on Industrial Informatics</i>, 2021, doi:<a href="https://doi.org/10.1109/tii.2021.3060469">10.1109/tii.2021.3060469</a>.
  short: A. Brosch, O. Wallscheid, J. Böcker, IEEE Transactions on Industrial Informatics
    (2021).
date_created: 2021-03-22T17:32:46Z
date_updated: 2022-02-28T09:14:48Z
department:
- _id: '52'
doi: 10.1109/tii.2021.3060469
language:
- iso: eng
publication: IEEE Transactions on Industrial Informatics
publication_identifier:
  issn:
  - 1551-3203
  - 1941-0050
publication_status: published
status: public
title: Torque and Inductances Estimation for Finite Model Predictive Control of Highly
  Utilized Permanent Magnet Synchronous Motors
type: journal_article
user_id: '75779'
year: '2021'
...
---
_id: '30340'
author:
- first_name: Marc
  full_name: Hagemeyer, Marc
  last_name: Hagemeyer
- first_name: Peter
  full_name: Wallmeier, Peter
  last_name: Wallmeier
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Hagemeyer M, Wallmeier P, Schafmeister F, Böcker J. Comparison of unidirectional
    Three- and Four-Wire based Boost PFC-Rectifier Topologies for Non-Isolated Three-Phase
    EV On-Board Chargers under Common-Mode Aspects. In: <i>Proc. 36th IEEE Applied
    Power Electronics Conference (APEC)</i>. IEEE; 2021:569-576.'
  apa: Hagemeyer, M., Wallmeier, P., Schafmeister, F., &#38; Böcker, J. (2021). Comparison
    of unidirectional Three- and Four-Wire based Boost PFC-Rectifier Topologies for
    Non-Isolated Three-Phase EV On-Board Chargers under Common-Mode Aspects. <i>Proc.
    36th IEEE Applied Power Electronics Conference (APEC)</i>, 569–576.
  bibtex: '@inproceedings{Hagemeyer_Wallmeier_Schafmeister_Böcker_2021, place={Phoenix,
    AZ, USA}, title={Comparison of unidirectional Three- and Four-Wire based Boost
    PFC-Rectifier Topologies for Non-Isolated Three-Phase EV On-Board Chargers under
    Common-Mode Aspects}, booktitle={Proc. 36th IEEE Applied Power Electronics Conference
    (APEC)}, publisher={IEEE}, author={Hagemeyer, Marc and Wallmeier, Peter and Schafmeister,
    Frank and Böcker, Joachim}, year={2021}, pages={569–576} }'
  chicago: 'Hagemeyer, Marc, Peter Wallmeier, Frank Schafmeister, and Joachim Böcker.
    “Comparison of Unidirectional Three- and Four-Wire Based Boost PFC-Rectifier Topologies
    for Non-Isolated Three-Phase EV On-Board Chargers under Common-Mode Aspects.”
    In <i>Proc. 36th IEEE Applied Power Electronics Conference (APEC)</i>, 569–76.
    Phoenix, AZ, USA: IEEE, 2021.'
  ieee: M. Hagemeyer, P. Wallmeier, F. Schafmeister, and J. Böcker, “Comparison of
    unidirectional Three- and Four-Wire based Boost PFC-Rectifier Topologies for Non-Isolated
    Three-Phase EV On-Board Chargers under Common-Mode Aspects,” in <i>Proc. 36th
    IEEE Applied Power Electronics Conference (APEC)</i>, Phoenix, AZ, USA, 2021,
    pp. 569–576.
  mla: Hagemeyer, Marc, et al. “Comparison of Unidirectional Three- and Four-Wire
    Based Boost PFC-Rectifier Topologies for Non-Isolated Three-Phase EV On-Board
    Chargers under Common-Mode Aspects.” <i>Proc. 36th IEEE Applied Power Electronics
    Conference (APEC)</i>, IEEE, 2021, pp. 569–76.
  short: 'M. Hagemeyer, P. Wallmeier, F. Schafmeister, J. Böcker, in: Proc. 36th IEEE
    Applied Power Electronics Conference (APEC), IEEE, Phoenix, AZ, USA, 2021, pp.
    569–576.'
conference:
  end_date: 2021-06-17
  location: Phoenix, AZ, USA
  name: 36th IEEE Applied Power Electronics Conference (APEC 21, Virtual Event)
  start_date: 2021-06-14
date_created: 2022-03-15T19:39:22Z
date_updated: 2022-03-15T19:40:00Z
department:
- _id: '52'
language:
- iso: eng
page: 569 - 576
place: Phoenix, AZ, USA
publication: Proc. 36th IEEE Applied Power Electronics Conference (APEC)
publication_status: published
publisher: IEEE
status: public
title: Comparison of unidirectional Three- and Four-Wire based Boost PFC-Rectifier
  Topologies for Non-Isolated Three-Phase EV On-Board Chargers under Common-Mode Aspects
type: conference
user_id: '71291'
year: '2021'
...
---
_id: '29938'
abstract:
- lang: eng
  text: Modular solid-state transformers (SSTs) are a promising technology in converting
    power from a 10kV three-phase medium voltage to a lower DC-voltage in the range
    of 100…400V to provide pure DC power to applications such as electrolyzers for
    hydrogen generation, data centers with a DC power distribution and DC micro grids.
    Modular SSTs which can be interpreted as modular multilevel converters with an
    isolated DC-DC output stage per module, are designed with redundant modules to
    increase reliability. Usually, each of the three arms operates independently,
    and therefore, only a fixed number of faulty modules can be compensated in each
    arm, even if all modules are operational in the remaining two arms. With the proposed
    zero-sequence voltage injection, up to 100% more faulty modules can be compensated
    in an arm by employing the same hardware. In addition, module power imbalances
    are nearly eliminated by utilizing a fundamental frequency zero-sequence voltage.
    A dominant 3rd harmonic zero-sequence voltage injection in combination with the
    5th, 7th and several higher order harmonics with adaptive (small) amplitudes minimize
    the required arm voltages at steady-state. For nominal operation or symmetrical
    faults, the proposed technique is equivalent to the well known Min-Max voltage
    injection, which already reduces the peak arm voltage by 13.4% compared to a constant
    star point potential. A statistical analysis proves, that the expected number
    of tolerable faulty modules of the 1MW SST increases by 12% without the need for
    additional hardware.
author:
- first_name: Roland
  full_name: Unruh, Roland
  id: '34289'
  last_name: Unruh
- first_name: Jarren
  full_name: Lange, Jarren
  id: '78801'
  last_name: Lange
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Unruh R, Lange J, Schafmeister F, Böcker J. Adaptive Zero-Sequence Voltage
    Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault
    Conditions. In: <i>23rd European Conference on Power Electronics and Applications
    (EPE’21 ECCE Europe)</i>. IEEE; 2021. doi:<a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>'
  apa: Unruh, R., Lange, J., Schafmeister, F., &#38; Böcker, J. (2021). Adaptive Zero-Sequence
    Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical
    Fault Conditions. <i>23rd European Conference on Power Electronics and Applications
    (EPE’21 ECCE Europe)</i>. 23rd European Conference on Power Electronics and Applications
    (EPE’21 ECCE Europe), Ghent, Belgium. <a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>
  bibtex: '@inproceedings{Unruh_Lange_Schafmeister_Böcker_2021, title={Adaptive Zero-Sequence
    Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical
    Fault Conditions}, DOI={<a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>},
    booktitle={23rd European Conference on Power Electronics and Applications (EPE’21
    ECCE Europe)}, publisher={IEEE}, author={Unruh, Roland and Lange, Jarren and Schafmeister,
    Frank and Böcker, Joachim}, year={2021} }'
  chicago: Unruh, Roland, Jarren Lange, Frank Schafmeister, and Joachim Böcker. “Adaptive
    Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate
    for Asymmetrical Fault Conditions.” In <i>23rd European Conference on Power Electronics
    and Applications (EPE’21 ECCE Europe)</i>. IEEE, 2021. <a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>.
  ieee: 'R. Unruh, J. Lange, F. Schafmeister, and J. Böcker, “Adaptive Zero-Sequence
    Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical
    Fault Conditions,” presented at the 23rd European Conference on Power Electronics
    and Applications (EPE’21 ECCE Europe), Ghent, Belgium, 2021, doi: <a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>.'
  mla: Unruh, Roland, et al. “Adaptive Zero-Sequence Voltage Injection for Modular
    Solid-State Transformer to Compensate for Asymmetrical Fault Conditions.” <i>23rd
    European Conference on Power Electronics and Applications (EPE’21 ECCE Europe)</i>,
    IEEE, 2021, doi:<a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542</a>.
  short: 'R. Unruh, J. Lange, F. Schafmeister, J. Böcker, in: 23rd European Conference
    on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.'
conference:
  end_date: 2021-09-10
  location: Ghent, Belgium
  name: 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE
    Europe)
  start_date: 2021-09-06
date_created: 2022-02-21T16:31:34Z
date_updated: 2022-09-09T12:01:42Z
department:
- _id: '52'
doi: https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542
keyword:
- Solid-State Transformer
- Zero sequence voltage
- Fault handling strategy
- Power balance control technique
- Three-phase system
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9570542
publication: 23rd European Conference on Power Electronics and Applications (EPE'21
  ECCE Europe)
publication_identifier:
  isbn:
  - 978-9-0758-1537-5
publication_status: published
publisher: IEEE
status: public
title: Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer
  to Compensate for Asymmetrical Fault Conditions
type: conference
user_id: '34289'
year: '2021'
...
---
_id: '29893'
abstract:
- lang: eng
  text: Phase-shift modulated full bridge converters suffer from thermal imbalances
    of the inverter switches. The lagging leg switches are subject to larger commutation
    currents compared to those of the leading leg as the transformer current reduces
    in the freewheeling interval. Furthermore, after this interval, the energy in
    the series inductance may not be large enough to achieve zero-voltage switching
    (ZVS) for the leading leg. Both effects result in thermal imbalances. This paper
    analyzes the alternating-asymmetrical phase-shift modulation to achieve balanced
    conduction and switching losses for all four switches while showing that this
    modulation is easily implemented on standard DSPs. The modulation has been implemented
    to LLC converters where experimental measurement results proved its effectiveness
    for LLC converters by reducing the temperature deviation from 6.3 K to only 0.2
    K such that the peak temperature is reduced from 95 °C to 92 °C. The paper also
    proves that the modulation can be utilized to improve the efficiency of LLC converters
    operated at very low gains while simultaneously reducing the junction temperature
    of all four switches compared to the conventional complementary modulation. Finally,
    EMI implications are analyzed, which show that the modulation may be beneficial
    for reducing the common-mode emissions around the operating frequency.
author:
- first_name: Philipp
  full_name: Rehlaender, Philipp
  id: '69469'
  last_name: Rehlaender
- first_name: Roland
  full_name: Unruh, Roland
  id: '34289'
  last_name: Unruh
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Rehlaender P, Unruh R, Schafmeister F, Böcker J. Alternating Asymmetrical
    Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses
    to Reduce Thermal Imbalances. In: <i>2021 IEEE Applied Power Electronics Conference
    and Exposition (APEC)</i>. IEEE; 2021. doi:<a href="https://doi.org/10.1109/apec42165.2021.9487104">10.1109/apec42165.2021.9487104</a>'
  apa: Rehlaender, P., Unruh, R., Schafmeister, F., &#38; Böcker, J. (2021). Alternating
    Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching
    Losses to Reduce Thermal Imbalances. <i>2021 IEEE Applied Power Electronics Conference
    and Exposition (APEC)</i>. 2021 IEEE Applied Power Electronics Conference and
    Exposition (APEC), Phoenix, AZ, USA. <a href="https://doi.org/10.1109/apec42165.2021.9487104">https://doi.org/10.1109/apec42165.2021.9487104</a>
  bibtex: '@inproceedings{Rehlaender_Unruh_Schafmeister_Böcker_2021, title={Alternating
    Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching
    Losses to Reduce Thermal Imbalances}, DOI={<a href="https://doi.org/10.1109/apec42165.2021.9487104">10.1109/apec42165.2021.9487104</a>},
    booktitle={2021 IEEE Applied Power Electronics Conference and Exposition (APEC)},
    publisher={IEEE}, author={Rehlaender, Philipp and Unruh, Roland and Schafmeister,
    Frank and Böcker, Joachim}, year={2021} }'
  chicago: Rehlaender, Philipp, Roland Unruh, Frank Schafmeister, and Joachim Böcker.
    “Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with
    Balanced Switching Losses to Reduce Thermal Imbalances.” In <i>2021 IEEE Applied
    Power Electronics Conference and Exposition (APEC)</i>. IEEE, 2021. <a href="https://doi.org/10.1109/apec42165.2021.9487104">https://doi.org/10.1109/apec42165.2021.9487104</a>.
  ieee: 'P. Rehlaender, R. Unruh, F. Schafmeister, and J. Böcker, “Alternating Asymmetrical
    Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses
    to Reduce Thermal Imbalances,” presented at the 2021 IEEE Applied Power Electronics
    Conference and Exposition (APEC), Phoenix, AZ, USA, 2021, doi: <a href="https://doi.org/10.1109/apec42165.2021.9487104">10.1109/apec42165.2021.9487104</a>.'
  mla: Rehlaender, Philipp, et al. “Alternating Asymmetrical Phase-Shift Modulation
    for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances.”
    <i>2021 IEEE Applied Power Electronics Conference and Exposition (APEC)</i>, IEEE,
    2021, doi:<a href="https://doi.org/10.1109/apec42165.2021.9487104">10.1109/apec42165.2021.9487104</a>.
  short: 'P. Rehlaender, R. Unruh, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied
    Power Electronics Conference and Exposition (APEC), IEEE, 2021.'
conference:
  end_date: 2021-06-17
  location: Phoenix, AZ, USA
  name: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
  start_date: 2021-06-14
date_created: 2022-02-20T21:19:46Z
date_updated: 2023-10-20T11:50:25Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/apec42165.2021.9487104
keyword:
- Phase-Shifted Full Bridge
- Full-Bridge Converter
- Phase-Shift Control
- Phase-Shift Modulation
- LLC Converter
- Thermal Balancing
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9487104
publication: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
publication_identifier:
  isbn:
  - 978-1-7281-8950-5
publication_status: published
publisher: IEEE
status: public
title: Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters
  with Balanced Switching Losses to Reduce Thermal Imbalances
type: conference
user_id: '34289'
year: '2021'
...
---
_id: '22218'
author:
- first_name: Stefan
  full_name: Krauter, Stefan
  id: '28836'
  last_name: Krauter
  orcid: 0000-0002-3594-260X
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
- first_name: Christine
  full_name: Freitag, Christine
  id: '20560'
  last_name: Freitag
- first_name: Burkhard
  full_name: Hehenkamp, Burkhard
  id: '37339'
  last_name: Hehenkamp
- first_name: Ulrich
  full_name: Hilleringmann, Ulrich
  id: '20179'
  last_name: Hilleringmann
- first_name: Katrin
  full_name: Temmen, Katrin
  id: '30086'
  last_name: Temmen
- first_name: Tobias
  full_name: Klaus, Tobias
  last_name: Klaus
- first_name: Nicolaus
  full_name: Rohrer, Nicolaus
  last_name: Rohrer
- first_name: Sven
  full_name: Lehmann, Sven
  last_name: Lehmann
citation:
  ama: 'Krauter S, Böcker J, Freitag C, et al. Projekt Art-D Grids: Nachhaltige und
    stabile Microgrids in Afrika - eine Plattform für Forschung und Lehre für die
    Entwicklung. In: <i>Tagungsband des 36. PV-Symposiums, 18.-26 Mai 2021</i>. Conexio;
    2021:305-309.'
  apa: 'Krauter, S., Böcker, J., Freitag, C., Hehenkamp, B., Hilleringmann, U., Temmen,
    K., Klaus, T., Rohrer, N., &#38; Lehmann, S. (2021). Projekt Art-D Grids: Nachhaltige
    und stabile Microgrids in Afrika - eine Plattform für Forschung und Lehre für
    die Entwicklung. <i>Tagungsband des 36. PV-Symposiums, 18.-26 Mai 2021</i>, 305–309.'
  bibtex: '@inproceedings{Krauter_Böcker_Freitag_Hehenkamp_Hilleringmann_Temmen_Klaus_Rohrer_Lehmann_2021,
    place={Pforzheim}, title={Projekt Art-D Grids: Nachhaltige und stabile Microgrids
    in Afrika - eine Plattform für Forschung und Lehre für die Entwicklung}, booktitle={Tagungsband
    des 36. PV-Symposiums, 18.-26 Mai 2021}, publisher={Conexio}, author={Krauter,
    Stefan and Böcker, Joachim and Freitag, Christine and Hehenkamp, Burkhard and
    Hilleringmann, Ulrich and Temmen, Katrin and Klaus, Tobias and Rohrer, Nicolaus
    and Lehmann, Sven}, year={2021}, pages={305–309} }'
  chicago: 'Krauter, Stefan, Joachim Böcker, Christine Freitag, Burkhard Hehenkamp,
    Ulrich Hilleringmann, Katrin Temmen, Tobias Klaus, Nicolaus Rohrer, and Sven Lehmann.
    “Projekt Art-D Grids: Nachhaltige und stabile Microgrids in Afrika - eine Plattform
    für Forschung und Lehre für die Entwicklung.” In <i>Tagungsband des 36. PV-Symposiums,
    18.-26 Mai 2021</i>, 305–9. Pforzheim: Conexio, 2021.'
  ieee: 'S. Krauter <i>et al.</i>, “Projekt Art-D Grids: Nachhaltige und stabile Microgrids
    in Afrika - eine Plattform für Forschung und Lehre für die Entwicklung,” in <i>Tagungsband
    des 36. PV-Symposiums, 18.-26 Mai 2021</i>, Staffelstein / online, 2021, pp. 305–309.'
  mla: 'Krauter, Stefan, et al. “Projekt Art-D Grids: Nachhaltige und stabile Microgrids
    in Afrika - eine Plattform für Forschung und Lehre für die Entwicklung.” <i>Tagungsband
    des 36. PV-Symposiums, 18.-26 Mai 2021</i>, Conexio, 2021, pp. 305–09.'
  short: 'S. Krauter, J. Böcker, C. Freitag, B. Hehenkamp, U. Hilleringmann, K. Temmen,
    T. Klaus, N. Rohrer, S. Lehmann, in: Tagungsband des 36. PV-Symposiums, 18.-26
    Mai 2021, Conexio, Pforzheim, 2021, pp. 305–309.'
conference:
  end_date: 2021-05-26
  location: Staffelstein / online
  name: 36. PV-Symposium
  start_date: 2021-05-18
date_created: 2021-05-20T09:58:43Z
date_updated: 2024-01-19T16:43:56Z
ddc:
- '620'
department:
- _id: '53'
- _id: '475'
- _id: '52'
- _id: '453'
- _id: '59'
- _id: '300'
file:
- access_level: closed
  content_type: application/pdf
  creator: krauter
  date_created: 2022-01-06T11:49:19Z
  date_updated: 2022-01-06T11:49:19Z
  file_id: '29170'
  file_name: Staffelstein 2021 ART-D S.305-309.pdf
  file_size: 5128404
  relation: main_file
  success: 1
file_date_updated: 2022-01-06T11:49:19Z
has_accepted_license: '1'
keyword:
- Art-D
- Afrika
- Resilienz
- Resilience
- Grid stability
- robustness
- microgrids
language:
- iso: ger
page: 305-309
place: Pforzheim
publication: Tagungsband des 36. PV-Symposiums, 18.-26 Mai 2021
publication_identifier:
  isbn:
  - 978-3-948176-14-3
publication_status: published
publisher: Conexio
quality_controlled: '1'
status: public
title: 'Projekt Art-D Grids: Nachhaltige und stabile Microgrids in Afrika - eine Plattform
  für Forschung und Lehre für die Entwicklung'
type: conference
user_id: '66'
year: '2021'
...
---
_id: '29899'
abstract:
- lang: eng
  text: LLC resonant converters are typically unsuitable to be applied for wide voltage-transfer
    ratio applications. With a full-bridge inverter, however, they can be operated
    in a variety of different modulations. Most notably, by permanently turning on
    one MOSFET and turning off the other MOSFET of the same bridge leg, the LLC can
    be operated in half-bridge configuration reducing the gain by a factor of two.
    The resonant capacitor is hereby charged to an average voltage of half the input
    voltage. In this modulation, however, the switch that is permanently turned on
    is stressed by the complete resonant current while exhibiting no switching losses.
    This paper proves that the frequency-doubler modulation can better balance the
    losses among all MOSFETs and should be the preferred mode of operation favored
    over the conventional half-bridge modulation. This paper analyzes the beneficial
    loss distribution, proposes an on-the-fly morphing modulation and discusses potential
    operating strategies to further reduce the junction temperature. Furthermore,
    it is shown that this modulation can also be altered to achieve the asymmetrical
    LLC operation. Experimental measurement results show that the modulation results
    in a substantial decrease of the maximum MOSFET temperature and shows that the
    converter can be smoothly transitioned during operation from full-bridge modulation
    to the frequency-doubler half-bridge operation and back.
author:
- first_name: Philipp
  full_name: Rehlaender, Philipp
  id: '69469'
  last_name: Rehlaender
- first_name: Roland
  full_name: Unruh, Roland
  id: '34289'
  last_name: Unruh
- first_name: Lars
  full_name: Hankeln, Lars
  last_name: Hankeln
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Rehlaender P, Unruh R, Hankeln L, Schafmeister F, Böcker J. Frequency-Doubler
    Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated
    in Half-Bridge Configuration. In: <i>23rd European Conference on Power Electronics
    and Applications (EPE’21 ECCE Europe)</i>. IEEE; 2021. doi:<a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674">10.23919/EPE21ECCEEurope50061.2021.9570674</a>'
  apa: Rehlaender, P., Unruh, R., Hankeln, L., Schafmeister, F., &#38; Böcker, J.
    (2021). Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC
    Resonant Converters Operated in Half-Bridge Configuration. <i>23rd European Conference
    on Power Electronics and Applications (EPE’21 ECCE Europe)</i>. 23rd European
    Conference on Power Electronics and Applications (EPE’21 ECCE Europe), Ghent,
    Belgium. <a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674</a>
  bibtex: '@inproceedings{Rehlaender_Unruh_Hankeln_Schafmeister_Böcker_2021, title={Frequency-Doubler
    Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated
    in Half-Bridge Configuration}, DOI={<a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674">10.23919/EPE21ECCEEurope50061.2021.9570674</a>},
    booktitle={23rd European Conference on Power Electronics and Applications (EPE’21
    ECCE Europe)}, publisher={IEEE}, author={Rehlaender, Philipp and Unruh, Roland
    and Hankeln, Lars and Schafmeister, Frank and Böcker, Joachim}, year={2021} }'
  chicago: Rehlaender, Philipp, Roland Unruh, Lars Hankeln, Frank Schafmeister, and
    Joachim Böcker. “Frequency-Doubler Modulation for Reduced Junction Temperatures
    for LLC Resonant Converters Operated in Half-Bridge Configuration.” In <i>23rd
    European Conference on Power Electronics and Applications (EPE’21 ECCE Europe)</i>.
    IEEE, 2021. <a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674">https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674</a>.
  ieee: 'P. Rehlaender, R. Unruh, L. Hankeln, F. Schafmeister, and J. Böcker, “Frequency-Doubler
    Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated
    in Half-Bridge Configuration,” presented at the 23rd European Conference on Power
    Electronics and Applications (EPE’21 ECCE Europe), Ghent, Belgium, 2021, doi:
    <a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674">10.23919/EPE21ECCEEurope50061.2021.9570674</a>.'
  mla: Rehlaender, Philipp, et al. “Frequency-Doubler Modulation for Reduced Junction
    Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration.”
    <i>23rd European Conference on Power Electronics and Applications (EPE’21 ECCE
    Europe)</i>, IEEE, 2021, doi:<a href="https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570674">10.23919/EPE21ECCEEurope50061.2021.9570674</a>.
  short: 'P. Rehlaender, R. Unruh, L. Hankeln, F. Schafmeister, J. Böcker, in: 23rd
    European Conference on Power Electronics and Applications (EPE’21 ECCE Europe),
    IEEE, 2021.'
conference:
  end_date: 2021-09-10
  location: Ghent, Belgium
  name: 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE
    Europe)
  start_date: 2021-09-06
date_created: 2022-02-20T21:29:48Z
date_updated: 2023-02-09T11:01:11Z
department:
- _id: '34'
- _id: '52'
doi: 10.23919/EPE21ECCEEurope50061.2021.9570674
keyword:
- Resonant converter
- High frequency power converter
- Switched-mode power supply
- Converter control
- Control methods for electrical systems
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9570674
publication: 23rd European Conference on Power Electronics and Applications (EPE'21
  ECCE Europe)
publication_identifier:
  isbn:
  - 978-9-0758-1537-5
publication_status: published
publisher: IEEE
status: public
title: Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant
  Converters Operated in Half-Bridge Configuration
type: conference
user_id: '34289'
year: '2021'
...
---
_id: '29655'
author:
- first_name: Wilhelm
  full_name: Kirchgässner, Wilhelm
  id: '49265'
  last_name: Kirchgässner
  orcid: 0000-0001-9490-1843
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Kirchgässner W, Wallscheid O, Böcker J. Thermal Neural Networks: Lumped-Parameter
    Thermal Modeling With State-Space Machine Learning. <i>arXiv preprint arXiv:210316323</i>.
    Published online 2021.'
  apa: 'Kirchgässner, W., Wallscheid, O., &#38; Böcker, J. (2021). Thermal Neural
    Networks: Lumped-Parameter Thermal Modeling With State-Space Machine Learning.
    In <i>arXiv preprint arXiv:2103.16323</i>.'
  bibtex: '@article{Kirchgässner_Wallscheid_Böcker_2021, title={Thermal Neural Networks:
    Lumped-Parameter Thermal Modeling With State-Space Machine Learning}, journal={arXiv
    preprint arXiv:2103.16323}, author={Kirchgässner, Wilhelm and Wallscheid, Oliver
    and Böcker, Joachim}, year={2021} }'
  chicago: 'Kirchgässner, Wilhelm, Oliver Wallscheid, and Joachim Böcker. “Thermal
    Neural Networks: Lumped-Parameter Thermal Modeling With State-Space Machine Learning.”
    <i>ArXiv Preprint ArXiv:2103.16323</i>, 2021.'
  ieee: 'W. Kirchgässner, O. Wallscheid, and J. Böcker, “Thermal Neural Networks:
    Lumped-Parameter Thermal Modeling With State-Space Machine Learning,” <i>arXiv
    preprint arXiv:2103.16323</i>. 2021.'
  mla: 'Kirchgässner, Wilhelm, et al. “Thermal Neural Networks: Lumped-Parameter Thermal
    Modeling With State-Space Machine Learning.” <i>ArXiv Preprint ArXiv:2103.16323</i>,
    2021.'
  short: W. Kirchgässner, O. Wallscheid, J. Böcker, ArXiv Preprint ArXiv:2103.16323
    (2021).
date_created: 2022-01-28T14:11:06Z
date_updated: 2023-03-09T10:11:13Z
department:
- _id: '52'
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: arXiv preprint arXiv:2103.16323
status: public
title: 'Thermal Neural Networks: Lumped-Parameter Thermal Modeling With State-Space
  Machine Learning'
type: preprint
user_id: '49265'
year: '2021'
...
---
_id: '29884'
author:
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Böcker J. Analysis of the Magnetic Skin Effekt in Motors and Inductors. In:
    <i>2020 International Symposium on Power Electronics, Electrical Drives, Automation
    and Motion (SPEEDAM)</i>. IEEE; 2020. doi:<a href="https://doi.org/10.1109/speedam48782.2020.9161895">10.1109/speedam48782.2020.9161895</a>'
  apa: Böcker, J. (2020). Analysis of the Magnetic Skin Effekt in Motors and Inductors.
    <i>2020 International Symposium on Power Electronics, Electrical Drives, Automation
    and Motion (SPEEDAM)</i>. SPEEDAM. <a href="https://doi.org/10.1109/speedam48782.2020.9161895">https://doi.org/10.1109/speedam48782.2020.9161895</a>
  bibtex: '@inproceedings{Böcker_2020, title={Analysis of the Magnetic Skin Effekt
    in Motors and Inductors}, DOI={<a href="https://doi.org/10.1109/speedam48782.2020.9161895">10.1109/speedam48782.2020.9161895</a>},
    booktitle={2020 International Symposium on Power Electronics, Electrical Drives,
    Automation and Motion (SPEEDAM)}, publisher={IEEE}, author={Böcker, Joachim},
    year={2020} }'
  chicago: Böcker, Joachim. “Analysis of the Magnetic Skin Effekt in Motors and Inductors.”
    In <i>2020 International Symposium on Power Electronics, Electrical Drives, Automation
    and Motion (SPEEDAM)</i>. IEEE, 2020. <a href="https://doi.org/10.1109/speedam48782.2020.9161895">https://doi.org/10.1109/speedam48782.2020.9161895</a>.
  ieee: 'J. Böcker, “Analysis of the Magnetic Skin Effekt in Motors and Inductors,”
    presented at the SPEEDAM, 2020, doi: <a href="https://doi.org/10.1109/speedam48782.2020.9161895">10.1109/speedam48782.2020.9161895</a>.'
  mla: Böcker, Joachim. “Analysis of the Magnetic Skin Effekt in Motors and Inductors.”
    <i>2020 International Symposium on Power Electronics, Electrical Drives, Automation
    and Motion (SPEEDAM)</i>, IEEE, 2020, doi:<a href="https://doi.org/10.1109/speedam48782.2020.9161895">10.1109/speedam48782.2020.9161895</a>.
  short: 'J. Böcker, in: 2020 International Symposium on Power Electronics, Electrical
    Drives, Automation and Motion (SPEEDAM), IEEE, 2020.'
conference:
  name: SPEEDAM
  start_date: '2020'
date_created: 2022-02-19T09:45:52Z
date_updated: 2022-02-19T10:09:10Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/speedam48782.2020.9161895
language:
- iso: eng
publication: 2020 International Symposium on Power Electronics, Electrical Drives,
  Automation and Motion (SPEEDAM)
publication_status: published
publisher: IEEE
status: public
title: Analysis of the Magnetic Skin Effekt in Motors and Inductors
type: conference
user_id: '66'
year: '2020'
...
---
_id: '21250'
author:
- first_name: Wilhelm
  full_name: Kirchgässner, Wilhelm
  id: '49265'
  last_name: Kirchgässner
  orcid: 0000-0001-9490-1843
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: Kirchgässner W, Wallscheid O, Böcker J. Estimating Electric Motor Temperatures
    with Deep Residual Machine Learning. <i>IEEE Transactions on Power Electronics</i>.
    2020;36(7):7480-7488. doi:<a href="https://doi.org/10.1109/tpel.2020.3045596">10.1109/tpel.2020.3045596</a>
  apa: Kirchgässner, W., Wallscheid, O., &#38; Böcker, J. (2020). Estimating Electric
    Motor Temperatures with Deep Residual Machine Learning. <i>IEEE Transactions on
    Power Electronics</i>, <i>36</i>(7), 7480–7488. <a href="https://doi.org/10.1109/tpel.2020.3045596">https://doi.org/10.1109/tpel.2020.3045596</a>
  bibtex: '@article{Kirchgässner_Wallscheid_Böcker_2020, title={Estimating Electric
    Motor Temperatures with Deep Residual Machine Learning}, volume={36}, DOI={<a
    href="https://doi.org/10.1109/tpel.2020.3045596">10.1109/tpel.2020.3045596</a>},
    number={7}, journal={IEEE Transactions on Power Electronics}, author={Kirchgässner,
    Wilhelm and Wallscheid, Oliver and Böcker, Joachim}, year={2020}, pages={7480–7488}
    }'
  chicago: 'Kirchgässner, Wilhelm, Oliver Wallscheid, and Joachim Böcker. “Estimating
    Electric Motor Temperatures with Deep Residual Machine Learning.” <i>IEEE Transactions
    on Power Electronics</i> 36, no. 7 (2020): 7480–88. <a href="https://doi.org/10.1109/tpel.2020.3045596">https://doi.org/10.1109/tpel.2020.3045596</a>.'
  ieee: 'W. Kirchgässner, O. Wallscheid, and J. Böcker, “Estimating Electric Motor
    Temperatures with Deep Residual Machine Learning,” <i>IEEE Transactions on Power
    Electronics</i>, vol. 36, no. 7, pp. 7480–7488, 2020, doi: <a href="https://doi.org/10.1109/tpel.2020.3045596">10.1109/tpel.2020.3045596</a>.'
  mla: Kirchgässner, Wilhelm, et al. “Estimating Electric Motor Temperatures with
    Deep Residual Machine Learning.” <i>IEEE Transactions on Power Electronics</i>,
    vol. 36, no. 7, 2020, pp. 7480–88, doi:<a href="https://doi.org/10.1109/tpel.2020.3045596">10.1109/tpel.2020.3045596</a>.
  short: W. Kirchgässner, O. Wallscheid, J. Böcker, IEEE Transactions on Power Electronics
    36 (2020) 7480–7488.
date_created: 2021-02-16T21:22:32Z
date_updated: 2022-02-19T16:51:20Z
department:
- _id: '52'
doi: 10.1109/tpel.2020.3045596
intvolume: '        36'
issue: '7'
language:
- iso: eng
page: 7480-7488
publication: IEEE Transactions on Power Electronics
publication_identifier:
  issn:
  - 0885-8993
  - 1941-0107
publication_status: published
status: public
title: Estimating Electric Motor Temperatures with Deep Residual Machine Learning
type: journal_article
user_id: '49265'
volume: 36
year: '2020'
...
---
_id: '29939'
abstract:
- lang: eng
  text: In this paper, a full-bridge modular multilevel converter (MMC) and two half-bridge-based
    MMCs are evaluated for high-current low-voltage e.g. 100 - 400V DC-applications
    such as electrolysis, arc welding or datacenters with DC-power distribution. Usually,
    modular multilevel converters are used in high-voltage DC-applications (HVDC)
    in the multiple kV-range, but to meet the needs of a high-current demand at low
    output voltage levels, the modular converter concept requires adaptations. In
    the proposed concept, the MMC is used to step-down the three-phase medium-voltage
    of 10kV, and provide up to 1 MW to the load. Therefore, each module is extended
    by an LLC resonant converter to adapt to the specific electrolyzers DC-voltage
    range of 142 - 220V and to provide galvanic isolation. The six-arm MMC converter
    with half-bridge modules can be simplified and optimized by removing three arms,
    and thus halving the number of modules. In addition, the module voltage ripple
    and capacitor losses are decreased by 22% and 30% respectively. By rearranging
    the components of the half-bridge MMC to build a MMC consisting of grid-side full-bridge
    modules, the voltage ripple is further reduced by 78% and capacitor losses by
    64%, while ensuring identical costs and volume for all MMCs. Finally, the LLC
    resonant converter is designed for the most efficient full-bridge MMC. The LLC
    can not operate at resonance with a fixed nominal module voltage of 770V because
    the output voltage is varying between 142 - 220V. By decreasing the module voltage
    down to 600V, additional points of operation can be operated in resonance, and
    the remaining are closer to resonance. The option to decrease the module voltage
    down to 600V, increases the number of required modules per arm from 12 to 15,
    which requires to balance the losses of the LLCs and the grid-side stages.
author:
- first_name: Roland
  full_name: Unruh, Roland
  id: '34289'
  last_name: Unruh
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Unruh R, Schafmeister F, Böcker J. Evaluation of MMCs for High-Power Low-Voltage
    DC-Applications in Combination with the Module LLC-Design. In: <i>2020 22nd European
    Conference on Power Electronics and Applications (EPE’20 ECCE Europe)</i>. IEEE;
    2020. doi:<a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687">10.23919/epe20ecceeurope43536.2020.9215687</a>'
  apa: Unruh, R., Schafmeister, F., &#38; Böcker, J. (2020). Evaluation of MMCs for
    High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design.
    <i>2020 22nd European Conference on Power Electronics and Applications (EPE’20
    ECCE Europe)</i>. 22nd European Conference on Power Electronics and Applications
    (EPE’20 ECCE Europe), Lyon, France. <a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687">https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687</a>
  bibtex: '@inproceedings{Unruh_Schafmeister_Böcker_2020, title={Evaluation of MMCs
    for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design},
    DOI={<a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687">10.23919/epe20ecceeurope43536.2020.9215687</a>},
    booktitle={2020 22nd European Conference on Power Electronics and Applications
    (EPE’20 ECCE Europe)}, publisher={IEEE}, author={Unruh, Roland and Schafmeister,
    Frank and Böcker, Joachim}, year={2020} }'
  chicago: Unruh, Roland, Frank Schafmeister, and Joachim Böcker. “Evaluation of MMCs
    for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design.”
    In <i>2020 22nd European Conference on Power Electronics and Applications (EPE’20
    ECCE Europe)</i>. IEEE, 2020. <a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687">https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687</a>.
  ieee: 'R. Unruh, F. Schafmeister, and J. Böcker, “Evaluation of MMCs for High-Power
    Low-Voltage DC-Applications in Combination with the Module LLC-Design,” presented
    at the 22nd European Conference on Power Electronics and Applications (EPE’20
    ECCE Europe), Lyon, France, 2020, doi: <a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687">10.23919/epe20ecceeurope43536.2020.9215687</a>.'
  mla: Unruh, Roland, et al. “Evaluation of MMCs for High-Power Low-Voltage DC-Applications
    in Combination with the Module LLC-Design.” <i>2020 22nd European Conference on
    Power Electronics and Applications (EPE’20 ECCE Europe)</i>, IEEE, 2020, doi:<a
    href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215687">10.23919/epe20ecceeurope43536.2020.9215687</a>.
  short: 'R. Unruh, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference
    on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.'
conference:
  end_date: 2020-09-11
  location: Lyon, France
  name: 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE
    Europe)
  start_date: 2020-09-07
date_created: 2022-02-21T16:33:14Z
date_updated: 2022-02-21T17:00:16Z
department:
- _id: '52'
doi: 10.23919/epe20ecceeurope43536.2020.9215687
keyword:
- Multilevel converters
- Resonant converter
- High voltage power converters
- ZVS Converters
- Combination MMC LLC
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9215687
publication: 2020 22nd European Conference on Power Electronics and Applications (EPE'20
  ECCE Europe)
publication_status: published
publisher: IEEE
status: public
title: Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination
  with the Module LLC-Design
type: conference
user_id: '34289'
year: '2020'
...
---
_id: '29894'
author:
- first_name: Philipp
  full_name: Rehlaender, Philipp
  id: '69469'
  last_name: Rehlaender
- first_name: Sergey
  full_name: Tikhonov, Sergey
  last_name: Tikhonov
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Rehlaender P, Tikhonov S, Schafmeister F, Böcker J. Dual Interleaved 3.6 kW
    LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode as a
    Single-Stage Architecture of an Automotive On-Board DC-DC Converter. In: <i>2020
    22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe)</i>.
    IEEE; 2020. doi:<a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736">10.23919/epe20ecceeurope43536.2020.9215736</a>'
  apa: Rehlaender, P., Tikhonov, S., Schafmeister, F., &#38; Böcker, J. (2020). Dual
    Interleaved 3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift
    Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC Converter.
    <i>2020 22nd European Conference on Power Electronics and Applications (EPE’20
    ECCE Europe)</i>. <a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736">https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736</a>
  bibtex: '@inproceedings{Rehlaender_Tikhonov_Schafmeister_Böcker_2020, title={Dual
    Interleaved 3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift
    Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC Converter},
    DOI={<a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736">10.23919/epe20ecceeurope43536.2020.9215736</a>},
    booktitle={2020 22nd European Conference on Power Electronics and Applications
    (EPE’20 ECCE Europe)}, publisher={IEEE}, author={Rehlaender, Philipp and Tikhonov,
    Sergey and Schafmeister, Frank and Böcker, Joachim}, year={2020} }'
  chicago: Rehlaender, Philipp, Sergey Tikhonov, Frank Schafmeister, and Joachim Böcker.
    “Dual Interleaved 3.6 KW LLC Converter Operating in Half-Bridge, Full-Bridge and
    Phase-Shift Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC
    Converter.” In <i>2020 22nd European Conference on Power Electronics and Applications
    (EPE’20 ECCE Europe)</i>. IEEE, 2020. <a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736">https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736</a>.
  ieee: 'P. Rehlaender, S. Tikhonov, F. Schafmeister, and J. Böcker, “Dual Interleaved
    3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode
    as a Single-Stage Architecture of an Automotive On-Board DC-DC Converter,” 2020,
    doi: <a href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736">10.23919/epe20ecceeurope43536.2020.9215736</a>.'
  mla: Rehlaender, Philipp, et al. “Dual Interleaved 3.6 KW LLC Converter Operating
    in Half-Bridge, Full-Bridge and Phase-Shift Mode as a Single-Stage Architecture
    of an Automotive On-Board DC-DC Converter.” <i>2020 22nd European Conference on
    Power Electronics and Applications (EPE’20 ECCE Europe)</i>, IEEE, 2020, doi:<a
    href="https://doi.org/10.23919/epe20ecceeurope43536.2020.9215736">10.23919/epe20ecceeurope43536.2020.9215736</a>.
  short: 'P. Rehlaender, S. Tikhonov, F. Schafmeister, J. Böcker, in: 2020 22nd European
    Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.'
date_created: 2022-02-20T21:20:00Z
date_updated: 2022-02-22T08:28:40Z
department:
- _id: '34'
- _id: '52'
doi: 10.23919/epe20ecceeurope43536.2020.9215736
language:
- iso: eng
publication: 2020 22nd European Conference on Power Electronics and Applications (EPE'20
  ECCE Europe)
publication_status: published
publisher: IEEE
status: public
title: Dual Interleaved 3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge
  and Phase-Shift Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC
  Converter
type: conference
user_id: '66'
year: '2020'
...