---
_id: '65099'
author:
- first_name: Daniel
full_name: Weber, Daniel
last_name: Weber
- first_name: Dominik
full_name: Schmies, Dominik
last_name: Schmies
- first_name: Jarren H.
full_name: Lange, Jarren H.
last_name: Lange
- first_name: Maximilian
full_name: Schenke, Maximilian
last_name: Schenke
- first_name: Oliver
full_name: Wallscheid, Oliver
last_name: Wallscheid
citation:
ama: Weber D, Schmies D, Lange JH, Schenke M, Wallscheid O. Optimal Control of Voltage-Forming
Grid Inverters by Model Predictive Control and Reinforcement Learning. IEEE
Access. 2026;14:38517-38535. doi:10.1109/access.2026.3670948
apa: Weber, D., Schmies, D., Lange, J. H., Schenke, M., & Wallscheid, O. (2026).
Optimal Control of Voltage-Forming Grid Inverters by Model Predictive Control
and Reinforcement Learning. IEEE Access, 14, 38517–38535. https://doi.org/10.1109/access.2026.3670948
bibtex: '@article{Weber_Schmies_Lange_Schenke_Wallscheid_2026, title={Optimal Control
of Voltage-Forming Grid Inverters by Model Predictive Control and Reinforcement
Learning}, volume={14}, DOI={10.1109/access.2026.3670948},
journal={IEEE Access}, publisher={Institute of Electrical and Electronics Engineers
(IEEE)}, author={Weber, Daniel and Schmies, Dominik and Lange, Jarren H. and Schenke,
Maximilian and Wallscheid, Oliver}, year={2026}, pages={38517–38535} }'
chicago: 'Weber, Daniel, Dominik Schmies, Jarren H. Lange, Maximilian Schenke, and
Oliver Wallscheid. “Optimal Control of Voltage-Forming Grid Inverters by Model
Predictive Control and Reinforcement Learning.” IEEE Access 14 (2026):
38517–35. https://doi.org/10.1109/access.2026.3670948.'
ieee: 'D. Weber, D. Schmies, J. H. Lange, M. Schenke, and O. Wallscheid, “Optimal
Control of Voltage-Forming Grid Inverters by Model Predictive Control and Reinforcement
Learning,” IEEE Access, vol. 14, pp. 38517–38535, 2026, doi: 10.1109/access.2026.3670948.'
mla: Weber, Daniel, et al. “Optimal Control of Voltage-Forming Grid Inverters by
Model Predictive Control and Reinforcement Learning.” IEEE Access, vol.
14, Institute of Electrical and Electronics Engineers (IEEE), 2026, pp. 38517–35,
doi:10.1109/access.2026.3670948.
short: D. Weber, D. Schmies, J.H. Lange, M. Schenke, O. Wallscheid, IEEE Access
14 (2026) 38517–38535.
date_created: 2026-03-23T16:37:18Z
date_updated: 2026-03-23T16:37:24Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/access.2026.3670948
intvolume: ' 14'
language:
- iso: eng
page: 38517-38535
publication: IEEE Access
publication_identifier:
issn:
- 2169-3536
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: Optimal Control of Voltage-Forming Grid Inverters by Model Predictive Control
and Reinforcement Learning
type: journal_article
user_id: '24041'
volume: 14
year: '2026'
...
---
_id: '65098'
author:
- first_name: Daniel
full_name: Weber, Daniel
last_name: Weber
- first_name: Jarren
full_name: Lange, Jarren
last_name: Lange
- first_name: Oliver
full_name: Wallscheid, Oliver
last_name: Wallscheid
citation:
ama: Weber D, Lange J, Wallscheid O. Reinforcement Learning-Based Control of Voltage-Forming
Grid Inverters With Arbitrary Loads. IEEE Journal of Emerging and Selected
Topics in Industrial Electronics. Published online 2026:1-12. doi:10.1109/jestie.2026.3654784
apa: Weber, D., Lange, J., & Wallscheid, O. (2026). Reinforcement Learning-Based
Control of Voltage-Forming Grid Inverters With Arbitrary Loads. IEEE Journal
of Emerging and Selected Topics in Industrial Electronics, 1–12. https://doi.org/10.1109/jestie.2026.3654784
bibtex: '@article{Weber_Lange_Wallscheid_2026, title={Reinforcement Learning-Based
Control of Voltage-Forming Grid Inverters With Arbitrary Loads}, DOI={10.1109/jestie.2026.3654784},
journal={IEEE Journal of Emerging and Selected Topics in Industrial Electronics},
publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Weber,
Daniel and Lange, Jarren and Wallscheid, Oliver}, year={2026}, pages={1–12} }'
chicago: Weber, Daniel, Jarren Lange, and Oliver Wallscheid. “Reinforcement Learning-Based
Control of Voltage-Forming Grid Inverters With Arbitrary Loads.” IEEE Journal
of Emerging and Selected Topics in Industrial Electronics, 2026, 1–12. https://doi.org/10.1109/jestie.2026.3654784.
ieee: 'D. Weber, J. Lange, and O. Wallscheid, “Reinforcement Learning-Based Control
of Voltage-Forming Grid Inverters With Arbitrary Loads,” IEEE Journal of Emerging
and Selected Topics in Industrial Electronics, pp. 1–12, 2026, doi: 10.1109/jestie.2026.3654784.'
mla: Weber, Daniel, et al. “Reinforcement Learning-Based Control of Voltage-Forming
Grid Inverters With Arbitrary Loads.” IEEE Journal of Emerging and Selected
Topics in Industrial Electronics, Institute of Electrical and Electronics
Engineers (IEEE), 2026, pp. 1–12, doi:10.1109/jestie.2026.3654784.
short: D. Weber, J. Lange, O. Wallscheid, IEEE Journal of Emerging and Selected
Topics in Industrial Electronics (2026) 1–12.
date_created: 2026-03-23T16:35:16Z
date_updated: 2026-03-23T16:35:24Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/jestie.2026.3654784
language:
- iso: eng
page: 1-12
publication: IEEE Journal of Emerging and Selected Topics in Industrial Electronics
publication_identifier:
issn:
- 2687-9735
- 2687-9743
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: Reinforcement Learning-Based Control of Voltage-Forming Grid Inverters With
Arbitrary Loads
type: journal_article
user_id: '24041'
year: '2026'
...
---
_id: '65253'
article_number: '306'
author:
- first_name: Ali Hassan Ali
full_name: Abdelwanis, Ali Hassan Ali
last_name: Abdelwanis
- first_name: Barnabas
full_name: Haucke-Korber, Barnabas
id: '93461'
last_name: Haucke-Korber
orcid: 0000-0003-0862-2069
- first_name: Darius
full_name: Jakobeit, Darius
last_name: Jakobeit
- first_name: Wilhelm
full_name: Kirchgässner, Wilhelm
id: '49265'
last_name: Kirchgässner
orcid: 0000-0001-9490-1843
- first_name: Marvin
full_name: Meyer, Marvin
last_name: Meyer
- first_name: Maximilian
full_name: Schenke, Maximilian
id: '52638'
last_name: Schenke
orcid: 0000-0001-5427-9527
- first_name: Hendrik
full_name: Vater, Hendrik
id: '63220'
last_name: Vater
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Daniel
full_name: Weber, Daniel
id: '24041'
last_name: Weber
orcid: 0000-0003-3367-5998
citation:
ama: 'Abdelwanis AHA, Haucke-Korber B, Jakobeit D, et al. Reinforcement Learning:
A Comprehensive Open-Source Course. Journal of Open Source Education. 2026;9(97).
doi:10.21105/jose.00306'
apa: 'Abdelwanis, A. H. A., Haucke-Korber, B., Jakobeit, D., Kirchgässner, W., Meyer,
M., Schenke, M., Vater, H., Wallscheid, O., & Weber, D. (2026). Reinforcement
Learning: A Comprehensive Open-Source Course. Journal of Open Source Education,
9(97), Article 306. https://doi.org/10.21105/jose.00306'
bibtex: '@article{Abdelwanis_Haucke-Korber_Jakobeit_Kirchgässner_Meyer_Schenke_Vater_Wallscheid_Weber_2026,
title={Reinforcement Learning: A Comprehensive Open-Source Course}, volume={9},
DOI={10.21105/jose.00306}, number={97306},
journal={Journal of Open Source Education}, publisher={The Open Journal}, author={Abdelwanis,
Ali Hassan Ali and Haucke-Korber, Barnabas and Jakobeit, Darius and Kirchgässner,
Wilhelm and Meyer, Marvin and Schenke, Maximilian and Vater, Hendrik and Wallscheid,
Oliver and Weber, Daniel}, year={2026} }'
chicago: 'Abdelwanis, Ali Hassan Ali, Barnabas Haucke-Korber, Darius Jakobeit, Wilhelm
Kirchgässner, Marvin Meyer, Maximilian Schenke, Hendrik Vater, Oliver Wallscheid,
and Daniel Weber. “Reinforcement Learning: A Comprehensive Open-Source Course.”
Journal of Open Source Education 9, no. 97 (2026). https://doi.org/10.21105/jose.00306.'
ieee: 'A. H. A. Abdelwanis et al., “Reinforcement Learning: A Comprehensive
Open-Source Course,” Journal of Open Source Education, vol. 9, no. 97,
Art. no. 306, 2026, doi: 10.21105/jose.00306.'
mla: 'Abdelwanis, Ali Hassan Ali, et al. “Reinforcement Learning: A Comprehensive
Open-Source Course.” Journal of Open Source Education, vol. 9, no. 97,
306, The Open Journal, 2026, doi:10.21105/jose.00306.'
short: A.H.A. Abdelwanis, B. Haucke-Korber, D. Jakobeit, W. Kirchgässner, M. Meyer,
M. Schenke, H. Vater, O. Wallscheid, D. Weber, Journal of Open Source Education
9 (2026).
date_created: 2026-03-31T07:30:04Z
date_updated: 2026-03-31T07:32:23Z
department:
- _id: '52'
doi: 10.21105/jose.00306
intvolume: ' 9'
issue: '97'
language:
- iso: eng
publication: Journal of Open Source Education
publication_identifier:
issn:
- 2577-3569
publication_status: published
publisher: The Open Journal
status: public
title: 'Reinforcement Learning: A Comprehensive Open-Source Course'
type: journal_article
user_id: '93461'
volume: 9
year: '2026'
...
---
_id: '59805'
abstract:
- lang: eng
text: The LLC converter achieves the highest efficiency in resonant operation. Conventionally,
the input DC-link voltage is controlled to operate the LLC converter at resonance
for the given operating point. However, the DC-link capacitor voltage shows a
low-frequency voltage ripple (typically the second harmonic of grid frequency)
in cascaded converters so that the LLC has to adapt its switching frequency within
the grid period. Conventionally, the LLC converter operates 50% of the time above
the resonant frequency of 40 kHz and 50% below resonance. Both operating conditions
cause additional losses. However, experimental measurements indicate that the
below-resonance operation causes significantly higher losses than above-resonance
operation due to much higher primary and secondary transformer currents. It is
better to increase the DC-link voltage by 30% of the peak-to-peak low-frequency
voltage ripple to mostly avoid below-resonance operation (i.e., from 650 V to
680 V in this case). With the proposed control, the LLC converter operates about
75% of time over resonance and only 25% of time below resonance. The overall efficiency
increases from 97.66% to 97.7% for the average operating point with an 80% load
current. This corresponds to a 2% total loss reduction. Finally, the peak resonance
capacitor voltage decreases from 910 V to 790 V (−13%).
article_number: '1517'
author:
- first_name: Roland
full_name: Unruh, Roland
id: '34289'
last_name: Unruh
- 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: Unruh R, Böcker J, Schafmeister F. Adaptive DC-Link Voltage Control for 22
kW, 40 kHz LLC Resonant Converter Considering Low-Frequency Voltage Ripple. Electronics.
2025;14(8). doi:10.3390/electronics14081517
apa: Unruh, R., Böcker, J., & Schafmeister, F. (2025). Adaptive DC-Link Voltage
Control for 22 kW, 40 kHz LLC Resonant Converter Considering Low-Frequency Voltage
Ripple. Electronics, 14(8), Article 1517. https://doi.org/10.3390/electronics14081517
bibtex: '@article{Unruh_Böcker_Schafmeister_2025, title={Adaptive DC-Link Voltage
Control for 22 kW, 40 kHz LLC Resonant Converter Considering Low-Frequency Voltage
Ripple}, volume={14}, DOI={10.3390/electronics14081517},
number={81517}, journal={Electronics}, publisher={MDPI AG}, author={Unruh, Roland
and Böcker, Joachim and Schafmeister, Frank}, year={2025} }'
chicago: Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “Adaptive DC-Link
Voltage Control for 22 KW, 40 KHz LLC Resonant Converter Considering Low-Frequency
Voltage Ripple.” Electronics 14, no. 8 (2025). https://doi.org/10.3390/electronics14081517.
ieee: 'R. Unruh, J. Böcker, and F. Schafmeister, “Adaptive DC-Link Voltage Control
for 22 kW, 40 kHz LLC Resonant Converter Considering Low-Frequency Voltage Ripple,”
Electronics, vol. 14, no. 8, Art. no. 1517, 2025, doi: 10.3390/electronics14081517.'
mla: Unruh, Roland, et al. “Adaptive DC-Link Voltage Control for 22 KW, 40 KHz LLC
Resonant Converter Considering Low-Frequency Voltage Ripple.” Electronics,
vol. 14, no. 8, 1517, MDPI AG, 2025, doi:10.3390/electronics14081517.
short: R. Unruh, J. Böcker, F. Schafmeister, Electronics 14 (2025).
date_created: 2025-05-05T12:27:39Z
date_updated: 2025-05-05T12:34:00Z
department:
- _id: '52'
doi: 10.3390/electronics14081517
intvolume: ' 14'
issue: '8'
keyword:
- adaptive DC-link voltage
- cascaded H-bridge
- resonant operation
- Full-Bridge Converter
- loss minimization
- LLC Resonant Converter
- peak capacitor voltage reduction
language:
- iso: eng
main_file_link:
- url: https://www.mdpi.com/2079-9292/14/8/1517
publication: Electronics
publication_identifier:
issn:
- 2079-9292
publication_status: published
publisher: MDPI AG
status: public
title: Adaptive DC-Link Voltage Control for 22 kW, 40 kHz LLC Resonant Converter Considering
Low-Frequency Voltage Ripple
type: journal_article
user_id: '34289'
volume: 14
year: '2025'
...
---
_id: '63157'
abstract:
- lang: eng
text: Three-phase cascaded H-bridge converters (CHBs) in star configuration require
reliable current controllers to evenly charge the module DC-link capacitors. Conventionally,
a current control in dq-coordinates is utilized. At steady state, the resulting
calculated reference arm voltages are sinusoidal, have identical amplitudes and
show a phase shift of 120 degree to each other. For balanced grid inductors, the
resulting grid currents also have the same amplitude. However, own simulations
show that unbalanced grid inductors always lead to different grid current amplitudes
(4% difference in this case). As a result, the averaged charging module powers
differ and the peak DC-link capacitor voltage rises as well. In the first step,
an adaptation of an existing zero-sequence voltage injection is proposed. For
balanced grid inductors, it converges to the 3rd harmonic voltage injection which
can reduce the peak-to-peak DC-link voltage ripple up by to 50% and balances the
power between the phases. However, unbalanced grid inductors still lead to the
same unbalanced grid currents of 4%. Therefore, a new method with 4 integrators
based on linear regression is proposed to achieve sinusoidal grid currents for
unbalanced inductors. The proposed method has a similar transient dynamic as the
conventional dq control, but balances the grid currents nearly ideally. Simulation
results of a 1MW cascaded H bridge and a scaled-down prototype verify the proposed
method.
author:
- first_name: Roland
full_name: Unruh, Roland
id: '34289'
last_name: Unruh
- 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: 'Unruh R, Böcker J, Schafmeister F. Three-Phase Instantaneous Current Controller
for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters.
In: 2025 Energy Conversion Congress &Amp; Expo Europe (ECCE Europe).
IEEE; 2025. doi:10.1109/ecce-europe62795.2025.11238538'
apa: Unruh, R., Böcker, J., & Schafmeister, F. (2025). Three-Phase Instantaneous
Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded
H-Bridge Converters. 2025 Energy Conversion Congress &Amp; Expo Europe
(ECCE Europe). 2025 Energy Conversion Congress & Expo Europe (ECCE Europe),
Birmingham, United Kingdom. https://doi.org/10.1109/ecce-europe62795.2025.11238538
bibtex: '@inproceedings{Unruh_Böcker_Schafmeister_2025, title={Three-Phase Instantaneous
Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded
H-Bridge Converters}, DOI={10.1109/ecce-europe62795.2025.11238538},
booktitle={2025 Energy Conversion Congress & Expo Europe (ECCE Europe)},
publisher={IEEE}, author={Unruh, Roland and Böcker, Joachim and Schafmeister,
Frank}, year={2025} }'
chicago: Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “Three-Phase Instantaneous
Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded
H-Bridge Converters.” In 2025 Energy Conversion Congress &Amp; Expo
Europe (ECCE Europe). IEEE, 2025. https://doi.org/10.1109/ecce-europe62795.2025.11238538.
ieee: 'R. Unruh, J. Böcker, and F. Schafmeister, “Three-Phase Instantaneous Current
Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge
Converters,” presented at the 2025 Energy Conversion Congress & Expo Europe
(ECCE Europe), Birmingham, United Kingdom, 2025, doi: 10.1109/ecce-europe62795.2025.11238538.'
mla: Unruh, Roland, et al. “Three-Phase Instantaneous Current Controller for Unbalanced
Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters.” 2025
Energy Conversion Congress &Amp; Expo Europe (ECCE Europe), IEEE,
2025, doi:10.1109/ecce-europe62795.2025.11238538.
short: 'R. Unruh, J. Böcker, F. Schafmeister, in: 2025 Energy Conversion Congress
&Amp; Expo Europe (ECCE Europe), IEEE, 2025.'
conference:
end_date: 2025-09-04
location: Birmingham, United Kingdom
name: 2025 Energy Conversion Congress & Expo Europe (ECCE Europe)
start_date: 2025-09-01
date_created: 2025-12-16T15:20:55Z
date_updated: 2025-12-16T15:25:38Z
department:
- _id: '52'
doi: 10.1109/ecce-europe62795.2025.11238538
keyword:
- Cascaded H-Bridge
- Current Control
- dq Transformation
- Linear Regression
- Unbalanced Inductors
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/document/11238538
publication: 2025 Energy Conversion Congress & Expo Europe (ECCE Europe)
publication_status: published
publisher: IEEE
status: public
title: Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors
Without DQ Transform for Cascaded H-Bridge Converters
type: conference
user_id: '34289'
year: '2025'
...
---
_id: '60746'
author:
- first_name: Darius
full_name: Jakobeit, Darius
last_name: Jakobeit
- first_name: Mario
full_name: Peña López, Mario
id: '82862'
last_name: Peña López
orcid: 0000-0001-5381-3660
- first_name: Maximilian
full_name: Schenke, Maximilian
id: '52638'
last_name: Schenke
orcid: 0000-0001-5427-9527
- first_name: Barnabas
full_name: Haucke-Korber, Barnabas
id: '93461'
last_name: Haucke-Korber
orcid: 0000-0003-0862-2069
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
citation:
ama: 'Jakobeit D, Peña López M, Schenke M, Haucke-Korber B, Wallscheid O. Structural
Optimization of Meta-Reinforcement Learning-based Finite-Control-Set Direct Torque
Control of Permanent Magnet Synchronous Motors. In: 2025 IEEE International
Electric Machines & Drives Conference (IEMDC). IEEE; 2025. doi:10.1109/iemdc60492.2025.11061179'
apa: Jakobeit, D., Peña López, M., Schenke, M., Haucke-Korber, B., & Wallscheid,
O. (2025). Structural Optimization of Meta-Reinforcement Learning-based Finite-Control-Set
Direct Torque Control of Permanent Magnet Synchronous Motors. 2025 IEEE International
Electric Machines & Drives Conference (IEMDC). https://doi.org/10.1109/iemdc60492.2025.11061179
bibtex: '@inproceedings{Jakobeit_Peña López_Schenke_Haucke-Korber_Wallscheid_2025,
title={Structural Optimization of Meta-Reinforcement Learning-based Finite-Control-Set
Direct Torque Control of Permanent Magnet Synchronous Motors}, DOI={10.1109/iemdc60492.2025.11061179},
booktitle={2025 IEEE International Electric Machines & Drives Conference (IEMDC)},
publisher={IEEE}, author={Jakobeit, Darius and Peña López, Mario and Schenke,
Maximilian and Haucke-Korber, Barnabas and Wallscheid, Oliver}, year={2025} }'
chicago: Jakobeit, Darius, Mario Peña López, Maximilian Schenke, Barnabas Haucke-Korber,
and Oliver Wallscheid. “Structural Optimization of Meta-Reinforcement Learning-Based
Finite-Control-Set Direct Torque Control of Permanent Magnet Synchronous Motors.”
In 2025 IEEE International Electric Machines & Drives Conference (IEMDC).
IEEE, 2025. https://doi.org/10.1109/iemdc60492.2025.11061179.
ieee: 'D. Jakobeit, M. Peña López, M. Schenke, B. Haucke-Korber, and O. Wallscheid,
“Structural Optimization of Meta-Reinforcement Learning-based Finite-Control-Set
Direct Torque Control of Permanent Magnet Synchronous Motors,” 2025, doi: 10.1109/iemdc60492.2025.11061179.'
mla: Jakobeit, Darius, et al. “Structural Optimization of Meta-Reinforcement Learning-Based
Finite-Control-Set Direct Torque Control of Permanent Magnet Synchronous Motors.”
2025 IEEE International Electric Machines & Drives Conference (IEMDC),
IEEE, 2025, doi:10.1109/iemdc60492.2025.11061179.
short: 'D. Jakobeit, M. Peña López, M. Schenke, B. Haucke-Korber, O. Wallscheid,
in: 2025 IEEE International Electric Machines & Drives Conference (IEMDC),
IEEE, 2025.'
date_created: 2025-07-25T12:26:51Z
date_updated: 2025-12-19T12:42:54Z
department:
- _id: '52'
doi: 10.1109/iemdc60492.2025.11061179
language:
- iso: eng
publication: 2025 IEEE International Electric Machines & Drives Conference (IEMDC)
publication_status: published
publisher: IEEE
status: public
title: Structural Optimization of Meta-Reinforcement Learning-based Finite-Control-Set
Direct Torque Control of Permanent Magnet Synchronous Motors
type: conference
user_id: '93461'
year: '2025'
...
---
_id: '60745'
author:
- first_name: Barnabas
full_name: Haucke-Korber, Barnabas
id: '93461'
last_name: Haucke-Korber
orcid: 0000-0003-0862-2069
- first_name: Nyi Nyi
full_name: Aung, Nyi Nyi
last_name: Aung
- first_name: Maximilian
full_name: Schenke, Maximilian
id: '52638'
last_name: Schenke
orcid: 0000-0001-5427-9527
- first_name: Mario
full_name: Peña López, Mario
id: '82862'
last_name: Peña López
orcid: 0000-0001-5381-3660
- first_name: Darius
full_name: Jakobeit, Darius
last_name: Jakobeit
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
citation:
ama: 'Haucke-Korber B, Aung NN, Schenke M, Peña López M, Jakobeit D, Wallscheid
O. Reinforcement Learning-based Direct Torque Control of Externally Excited Synchronous
Motors: a Proof of Concept. In: 2025 IEEE International Electric Machines &
Drives Conference (IEMDC). IEEE; 2025. doi:10.1109/iemdc60492.2025.11061093'
apa: 'Haucke-Korber, B., Aung, N. N., Schenke, M., Peña López, M., Jakobeit, D.,
& Wallscheid, O. (2025). Reinforcement Learning-based Direct Torque Control
of Externally Excited Synchronous Motors: a Proof of Concept. 2025 IEEE International
Electric Machines & Drives Conference (IEMDC). https://doi.org/10.1109/iemdc60492.2025.11061093'
bibtex: '@inproceedings{Haucke-Korber_Aung_Schenke_Peña López_Jakobeit_Wallscheid_2025,
title={Reinforcement Learning-based Direct Torque Control of Externally Excited
Synchronous Motors: a Proof of Concept}, DOI={10.1109/iemdc60492.2025.11061093},
booktitle={2025 IEEE International Electric Machines & Drives Conference (IEMDC)},
publisher={IEEE}, author={Haucke-Korber, Barnabas and Aung, Nyi Nyi and Schenke,
Maximilian and Peña López, Mario and Jakobeit, Darius and Wallscheid, Oliver},
year={2025} }'
chicago: 'Haucke-Korber, Barnabas, Nyi Nyi Aung, Maximilian Schenke, Mario Peña
López, Darius Jakobeit, and Oliver Wallscheid. “Reinforcement Learning-Based Direct
Torque Control of Externally Excited Synchronous Motors: A Proof of Concept.”
In 2025 IEEE International Electric Machines & Drives Conference (IEMDC).
IEEE, 2025. https://doi.org/10.1109/iemdc60492.2025.11061093.'
ieee: 'B. Haucke-Korber, N. N. Aung, M. Schenke, M. Peña López, D. Jakobeit, and
O. Wallscheid, “Reinforcement Learning-based Direct Torque Control of Externally
Excited Synchronous Motors: a Proof of Concept,” 2025, doi: 10.1109/iemdc60492.2025.11061093.'
mla: 'Haucke-Korber, Barnabas, et al. “Reinforcement Learning-Based Direct Torque
Control of Externally Excited Synchronous Motors: A Proof of Concept.” 2025
IEEE International Electric Machines & Drives Conference (IEMDC), IEEE,
2025, doi:10.1109/iemdc60492.2025.11061093.'
short: 'B. Haucke-Korber, N.N. Aung, M. Schenke, M. Peña López, D. Jakobeit, O.
Wallscheid, in: 2025 IEEE International Electric Machines & Drives Conference
(IEMDC), IEEE, 2025.'
date_created: 2025-07-25T12:26:35Z
date_updated: 2025-12-19T12:43:17Z
department:
- _id: '52'
doi: 10.1109/iemdc60492.2025.11061093
language:
- iso: eng
publication: 2025 IEEE International Electric Machines & Drives Conference (IEMDC)
publication_status: published
publisher: IEEE
status: public
title: 'Reinforcement Learning-based Direct Torque Control of Externally Excited Synchronous
Motors: a Proof of Concept'
type: conference
user_id: '93461'
year: '2025'
...
---
_id: '60744'
author:
- first_name: Mario
full_name: Peña López, Mario
id: '82862'
last_name: Peña López
orcid: 0000-0001-5381-3660
- first_name: Maximilian
full_name: Schenke, Maximilian
id: '52638'
last_name: Schenke
orcid: 0000-0001-5427-9527
- first_name: Darius
full_name: Jakobeit, Darius
last_name: Jakobeit
- first_name: Barnabas
full_name: Haucke-Korber, Barnabas
id: '93461'
last_name: Haucke-Korber
orcid: 0000-0003-0862-2069
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
citation:
ama: 'Peña López M, Schenke M, Jakobeit D, Haucke-Korber B, Wallscheid O. Reinforcement
Learning Control of Three-Level Converter Permanent Magnet Synchronous Machine
Drives. In: 2025 IEEE International Electric Machines & Drives Conference
(IEMDC). IEEE; 2025. doi:10.1109/iemdc60492.2025.11061032'
apa: Peña López, M., Schenke, M., Jakobeit, D., Haucke-Korber, B., & Wallscheid,
O. (2025). Reinforcement Learning Control of Three-Level Converter Permanent Magnet
Synchronous Machine Drives. 2025 IEEE International Electric Machines &
Drives Conference (IEMDC). https://doi.org/10.1109/iemdc60492.2025.11061032
bibtex: '@inproceedings{Peña López_Schenke_Jakobeit_Haucke-Korber_Wallscheid_2025,
title={Reinforcement Learning Control of Three-Level Converter Permanent Magnet
Synchronous Machine Drives}, DOI={10.1109/iemdc60492.2025.11061032},
booktitle={2025 IEEE International Electric Machines & Drives Conference (IEMDC)},
publisher={IEEE}, author={Peña López, Mario and Schenke, Maximilian and Jakobeit,
Darius and Haucke-Korber, Barnabas and Wallscheid, Oliver}, year={2025} }'
chicago: Peña López, Mario, Maximilian Schenke, Darius Jakobeit, Barnabas Haucke-Korber,
and Oliver Wallscheid. “Reinforcement Learning Control of Three-Level Converter
Permanent Magnet Synchronous Machine Drives.” In 2025 IEEE International Electric
Machines & Drives Conference (IEMDC). IEEE, 2025. https://doi.org/10.1109/iemdc60492.2025.11061032.
ieee: 'M. Peña López, M. Schenke, D. Jakobeit, B. Haucke-Korber, and O. Wallscheid,
“Reinforcement Learning Control of Three-Level Converter Permanent Magnet Synchronous
Machine Drives,” 2025, doi: 10.1109/iemdc60492.2025.11061032.'
mla: Peña López, Mario, et al. “Reinforcement Learning Control of Three-Level Converter
Permanent Magnet Synchronous Machine Drives.” 2025 IEEE International Electric
Machines & Drives Conference (IEMDC), IEEE, 2025, doi:10.1109/iemdc60492.2025.11061032.
short: 'M. Peña López, M. Schenke, D. Jakobeit, B. Haucke-Korber, O. Wallscheid,
in: 2025 IEEE International Electric Machines & Drives Conference (IEMDC),
IEEE, 2025.'
date_created: 2025-07-25T12:26:05Z
date_updated: 2025-12-19T12:43:37Z
department:
- _id: '52'
doi: 10.1109/iemdc60492.2025.11061032
language:
- iso: eng
publication: 2025 IEEE International Electric Machines & Drives Conference (IEMDC)
publication_status: published
publisher: IEEE
status: public
title: Reinforcement Learning Control of Three-Level Converter Permanent Magnet Synchronous
Machine Drives
type: conference
user_id: '93461'
year: '2025'
...
---
_id: '63498'
author:
- first_name: Wilhelm
full_name: Kirchgässner, Wilhelm
last_name: Kirchgässner
- first_name: Nikolas
full_name: Förster, Nikolas
last_name: Förster
- first_name: Till
full_name: Piepenbrock, Till
last_name: Piepenbrock
- first_name: Oliver
full_name: Schweins, Oliver
last_name: Schweins
- first_name: Oliver
full_name: Wallscheid, Oliver
last_name: Wallscheid
citation:
ama: 'Kirchgässner W, Förster N, Piepenbrock T, Schweins O, Wallscheid O. HARDCORE:
H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual, Dilated
Convolutional Neural Networks in Ferrite Cores. IEEE Transactions on Power
Electronics. 2025;40(2):3326-3335. doi:10.1109/TPEL.2024.3488174'
apa: 'Kirchgässner, W., Förster, N., Piepenbrock, T., Schweins, O., & Wallscheid,
O. (2025). HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms
With Residual, Dilated Convolutional Neural Networks in Ferrite Cores. IEEE
Transactions on Power Electronics, 40(2), 3326–3335. https://doi.org/10.1109/TPEL.2024.3488174'
bibtex: '@article{Kirchgässner_Förster_Piepenbrock_Schweins_Wallscheid_2025, title={HARDCORE:
H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual, Dilated
Convolutional Neural Networks in Ferrite Cores}, volume={40}, DOI={10.1109/TPEL.2024.3488174},
number={2}, journal={IEEE Transactions on Power Electronics}, author={Kirchgässner,
Wilhelm and Förster, Nikolas and Piepenbrock, Till and Schweins, Oliver and Wallscheid,
Oliver}, year={2025}, pages={3326–3335} }'
chicago: 'Kirchgässner, Wilhelm, Nikolas Förster, Till Piepenbrock, Oliver Schweins,
and Oliver Wallscheid. “HARDCORE: H-Field and Power Loss Estimation for Arbitrary
Waveforms With Residual, Dilated Convolutional Neural Networks in Ferrite Cores.”
IEEE Transactions on Power Electronics 40, no. 2 (2025): 3326–35. https://doi.org/10.1109/TPEL.2024.3488174.'
ieee: 'W. Kirchgässner, N. Förster, T. Piepenbrock, O. Schweins, and O. Wallscheid,
“HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual,
Dilated Convolutional Neural Networks in Ferrite Cores,” IEEE Transactions
on Power Electronics, vol. 40, no. 2, pp. 3326–3335, 2025, doi: 10.1109/TPEL.2024.3488174.'
mla: 'Kirchgässner, Wilhelm, et al. “HARDCORE: H-Field and Power Loss Estimation
for Arbitrary Waveforms With Residual, Dilated Convolutional Neural Networks in
Ferrite Cores.” IEEE Transactions on Power Electronics, vol. 40, no. 2,
2025, pp. 3326–35, doi:10.1109/TPEL.2024.3488174.'
short: W. Kirchgässner, N. Förster, T. Piepenbrock, O. Schweins, O. Wallscheid,
IEEE Transactions on Power Electronics 40 (2025) 3326–3335.
date_created: 2026-01-06T08:07:13Z
date_updated: 2026-01-06T08:08:01Z
department:
- _id: '52'
doi: 10.1109/TPEL.2024.3488174
intvolume: ' 40'
issue: '2'
keyword:
- Mathematical models
- Estimation
- Data models
- Convolutional neural networks
- Accuracy
- Magnetic hysteresis
- Magnetic cores
- Temperature measurement
- Magnetic domains
- Temperature distribution
- Convolutional neural network (CNN)
- machine learning (ML)
- magnetics
page: 3326-3335
publication: IEEE Transactions on Power Electronics
status: public
title: 'HARDCORE: H-Field and Power Loss Estimation for Arbitrary Waveforms With Residual,
Dilated Convolutional Neural Networks in Ferrite Cores'
type: journal_article
user_id: '83383'
volume: 40
year: '2025'
...
---
_id: '63496'
author:
- first_name: Nikolas
full_name: Foerster, Nikolas
last_name: Foerster
- first_name: Daniel
full_name: Urbaneck, Daniel
last_name: Urbaneck
- first_name: Maximilian
full_name: Schenke, Maximilian
last_name: Schenke
- first_name: Anastacia
full_name: Ebers, Anastacia
last_name: Ebers
- first_name: Nicolas
full_name: Schoenlau, Nicolas
last_name: Schoenlau
- first_name: Oliver
full_name: Wallscheid, Oliver
last_name: Wallscheid
- first_name: Frank
full_name: Schafmeister, Frank
last_name: Schafmeister
citation:
ama: 'Foerster N, Urbaneck D, Schenke M, et al. Improving the Usability of Calorimetric
Measuring Chambers for Reliable Thermal Measurements. In: PCIM Conference 2025;
International Exhibition and Conference for Power Electronics, Intelligent Motion,
Renewable Energy and Energy Management. ; 2025:2881-2890. doi:10.30420/566541386'
apa: Foerster, N., Urbaneck, D., Schenke, M., Ebers, A., Schoenlau, N., Wallscheid,
O., & Schafmeister, F. (2025). Improving the Usability of Calorimetric Measuring
Chambers for Reliable Thermal Measurements. PCIM Conference 2025; International
Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable
Energy and Energy Management, 2881–2890. https://doi.org/10.30420/566541386
bibtex: '@inproceedings{Foerster_Urbaneck_Schenke_Ebers_Schoenlau_Wallscheid_Schafmeister_2025,
title={Improving the Usability of Calorimetric Measuring Chambers for Reliable
Thermal Measurements}, DOI={10.30420/566541386},
booktitle={PCIM Conference 2025; International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management}, author={Foerster,
Nikolas and Urbaneck, Daniel and Schenke, Maximilian and Ebers, Anastacia and
Schoenlau, Nicolas and Wallscheid, Oliver and Schafmeister, Frank}, year={2025},
pages={2881–2890} }'
chicago: Foerster, Nikolas, Daniel Urbaneck, Maximilian Schenke, Anastacia Ebers,
Nicolas Schoenlau, Oliver Wallscheid, and Frank Schafmeister. “Improving the Usability
of Calorimetric Measuring Chambers for Reliable Thermal Measurements.” In PCIM
Conference 2025; International Exhibition and Conference for Power Electronics,
Intelligent Motion, Renewable Energy and Energy Management, 2881–90, 2025.
https://doi.org/10.30420/566541386.
ieee: 'N. Foerster et al., “Improving the Usability of Calorimetric Measuring
Chambers for Reliable Thermal Measurements,” in PCIM Conference 2025; International
Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable
Energy and Energy Management, 2025, pp. 2881–2890, doi: 10.30420/566541386.'
mla: Foerster, Nikolas, et al. “Improving the Usability of Calorimetric Measuring
Chambers for Reliable Thermal Measurements.” PCIM Conference 2025; International
Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable
Energy and Energy Management, 2025, pp. 2881–90, doi:10.30420/566541386.
short: 'N. Foerster, D. Urbaneck, M. Schenke, A. Ebers, N. Schoenlau, O. Wallscheid,
F. Schafmeister, in: PCIM Conference 2025; International Exhibition and Conference
for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management,
2025, pp. 2881–2890.'
date_created: 2026-01-06T08:04:10Z
date_updated: 2026-01-06T08:05:25Z
department:
- _id: '52'
doi: 10.30420/566541386
language:
- iso: eng
page: 2881-2890
publication: PCIM Conference 2025; International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management
status: public
title: Improving the Usability of Calorimetric Measuring Chambers for Reliable Thermal
Measurements
type: conference
user_id: '83383'
year: '2025'
...
---
_id: '65097'
author:
- first_name: Daniel
full_name: Weber, Daniel
last_name: Weber
- first_name: Jarren
full_name: Lange, Jarren
last_name: Lange
- first_name: Oliver
full_name: Wallscheid, Oliver
last_name: Wallscheid
citation:
ama: 'Weber D, Lange J, Wallscheid O. Safe Reinforcement Learning-based Control
for a Voltage Source Inverter Operating in an Unbalanced Grid. In: 2025 IEEE
Kiel PowerTech. IEEE; 2025. doi:10.1109/powertech59965.2025.11180230'
apa: Weber, D., Lange, J., & Wallscheid, O. (2025). Safe Reinforcement Learning-based
Control for a Voltage Source Inverter Operating in an Unbalanced Grid. 2025
IEEE Kiel PowerTech. https://doi.org/10.1109/powertech59965.2025.11180230
bibtex: '@inproceedings{Weber_Lange_Wallscheid_2025, title={Safe Reinforcement Learning-based
Control for a Voltage Source Inverter Operating in an Unbalanced Grid}, DOI={10.1109/powertech59965.2025.11180230},
booktitle={2025 IEEE Kiel PowerTech}, publisher={IEEE}, author={Weber, Daniel
and Lange, Jarren and Wallscheid, Oliver}, year={2025} }'
chicago: Weber, Daniel, Jarren Lange, and Oliver Wallscheid. “Safe Reinforcement
Learning-Based Control for a Voltage Source Inverter Operating in an Unbalanced
Grid.” In 2025 IEEE Kiel PowerTech. IEEE, 2025. https://doi.org/10.1109/powertech59965.2025.11180230.
ieee: 'D. Weber, J. Lange, and O. Wallscheid, “Safe Reinforcement Learning-based
Control for a Voltage Source Inverter Operating in an Unbalanced Grid,” 2025,
doi: 10.1109/powertech59965.2025.11180230.'
mla: Weber, Daniel, et al. “Safe Reinforcement Learning-Based Control for a Voltage
Source Inverter Operating in an Unbalanced Grid.” 2025 IEEE Kiel PowerTech,
IEEE, 2025, doi:10.1109/powertech59965.2025.11180230.
short: 'D. Weber, J. Lange, O. Wallscheid, in: 2025 IEEE Kiel PowerTech, IEEE, 2025.'
date_created: 2026-03-23T15:32:40Z
date_updated: 2026-03-23T15:33:16Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/powertech59965.2025.11180230
language:
- iso: eng
publication: 2025 IEEE Kiel PowerTech
publication_status: published
publisher: IEEE
status: public
title: Safe Reinforcement Learning-based Control for a Voltage Source Inverter Operating
in an Unbalanced Grid
type: conference
user_id: '24041'
year: '2025'
...
---
_id: '54355'
author:
- first_name: Daniel
full_name: Urbaneck, Daniel
id: '60223'
last_name: Urbaneck
- first_name: Jan
full_name: Wiegard, Jan
last_name: Wiegard
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
citation:
ama: 'Urbaneck D, Wiegard J, Schafmeister F. Analysis of Inverter Operation Modes
of an IGBT-Based ZCS LLC Converter for a 2 kW Automotive On-Board DC-DC. In: PCIM
Europe 2024; IEEE International Exhibition and Conference for Power Electronics,
Intelligent Motion, Renewable Energy and Energy Management.'
apa: Urbaneck, D., Wiegard, J., & Schafmeister, F. (n.d.). Analysis of Inverter
Operation Modes of an IGBT-Based ZCS LLC Converter for a 2 kW Automotive On-Board
DC-DC. PCIM Europe 2024; IEEE International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management.
bibtex: '@inproceedings{Urbaneck_Wiegard_Schafmeister, place={Nuremberg}, title={Analysis
of Inverter Operation Modes of an IGBT-Based ZCS LLC Converter for a 2 kW Automotive
On-Board DC-DC}, booktitle={PCIM Europe 2024; IEEE International Exhibition and
Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy
Management}, author={Urbaneck, Daniel and Wiegard, Jan and Schafmeister, Frank}
}'
chicago: Urbaneck, Daniel, Jan Wiegard, and Frank Schafmeister. “Analysis of Inverter
Operation Modes of an IGBT-Based ZCS LLC Converter for a 2 KW Automotive On-Board
DC-DC.” In PCIM Europe 2024; IEEE International Exhibition and Conference for
Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
Nuremberg, n.d.
ieee: D. Urbaneck, J. Wiegard, and F. Schafmeister, “Analysis of Inverter Operation
Modes of an IGBT-Based ZCS LLC Converter for a 2 kW Automotive On-Board DC-DC,”
Nuremberg.
mla: Urbaneck, Daniel, et al. “Analysis of Inverter Operation Modes of an IGBT-Based
ZCS LLC Converter for a 2 KW Automotive On-Board DC-DC.” PCIM Europe 2024;
IEEE International Exhibition and Conference for Power Electronics, Intelligent
Motion, Renewable Energy and Energy Management.
short: 'D. Urbaneck, J. Wiegard, F. Schafmeister, in: PCIM Europe 2024; IEEE International
Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable
Energy and Energy Management, Nuremberg, n.d.'
conference:
location: Nuremberg
date_created: 2024-05-19T14:14:56Z
date_updated: 2024-05-19T14:16:19Z
department:
- _id: '52'
language:
- iso: eng
place: Nuremberg
publication: PCIM Europe 2024; IEEE International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management
publication_status: inpress
status: public
title: Analysis of Inverter Operation Modes of an IGBT-Based ZCS LLC Converter for
a 2 kW Automotive On-Board DC-DC
type: conference
user_id: '71291'
year: '2024'
...
---
_id: '54353'
author:
- first_name: Till
full_name: Piepenbrock, Till
last_name: Piepenbrock
- first_name: 'Lukas '
full_name: 'Keuck, Lukas '
last_name: Keuck
- first_name: 'Sebastian '
full_name: 'Schachten, Sebastian '
last_name: Schachten
- 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: 'Piepenbrock T, Keuck L, Schachten S, Böcker J, Schafmeister F. Study on Sample
Geometries for Ferrite Characterisation in the MHz-Range. In: PCIM Europe 2024;
IEEE International Exhibition and Conference for Power Electronics, Intelligent
Motion, Renewable Energy and Energy Management.'
apa: Piepenbrock, T., Keuck, L., Schachten, S., Böcker, J., & Schafmeister,
F. (n.d.). Study on Sample Geometries for Ferrite Characterisation in the MHz-Range.
PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics,
Intelligent Motion, Renewable Energy and Energy Management.
bibtex: '@inproceedings{Piepenbrock_Keuck_Schachten_Böcker_Schafmeister, place={Nuremberg},
title={Study on Sample Geometries for Ferrite Characterisation in the MHz-Range},
booktitle={PCIM Europe 2024; IEEE International Exhibition and Conference for
Power Electronics, Intelligent Motion, Renewable Energy and Energy Management},
author={Piepenbrock, Till and Keuck, Lukas and Schachten, Sebastian and Böcker,
Joachim and Schafmeister, Frank} }'
chicago: Piepenbrock, Till, Lukas Keuck, Sebastian Schachten, Joachim Böcker,
and Frank Schafmeister. “Study on Sample Geometries for Ferrite Characterisation
in the MHz-Range.” In PCIM Europe 2024; IEEE International Exhibition and Conference
for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
Nuremberg, n.d.
ieee: T. Piepenbrock, L. Keuck, S. Schachten, J. Böcker, and F. Schafmeister, “Study
on Sample Geometries for Ferrite Characterisation in the MHz-Range,” Nuremberg.
mla: Piepenbrock, Till, et al. “Study on Sample Geometries for Ferrite Characterisation
in the MHz-Range.” PCIM Europe 2024; IEEE International Exhibition and Conference
for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
short: 'T. Piepenbrock, L. Keuck, S. Schachten, J. Böcker, F. Schafmeister, in:
PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics,
Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.'
conference:
location: Nuremberg
date_created: 2024-05-19T14:00:13Z
date_updated: 2024-05-19T14:05:02Z
department:
- _id: '52'
language:
- iso: eng
place: Nuremberg
publication: PCIM Europe 2024; IEEE International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management
publication_status: inpress
status: public
title: Study on Sample Geometries for Ferrite Characterisation in the MHz-Range
type: conference
user_id: '71291'
year: '2024'
...
---
_id: '54354'
author:
- first_name: Nikolas
full_name: Förster, Nikolas
id: '83383'
last_name: Förster
- first_name: Daniel
full_name: Urbaneck, Daniel
id: '60223'
last_name: Urbaneck
- first_name: Benedikt
full_name: Kohlhepp, Benedikt
last_name: Kohlhepp
- first_name: Daniel
full_name: Kübrich, Daniel
last_name: Kübrich
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
citation:
ama: 'Förster N, Urbaneck D, Kohlhepp B, Kübrich D, Schafmeister F. Pitfalls and
their Avoidability in the Double-Pulse Test. In: PCIM Europe 2024; IEEE International
Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable
Energy and Energy Management.'
apa: Förster, N., Urbaneck, D., Kohlhepp, B., Kübrich, D., & Schafmeister, F.
(n.d.). Pitfalls and their Avoidability in the Double-Pulse Test. PCIM Europe
2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent
Motion, Renewable Energy and Energy Management.
bibtex: '@inproceedings{Förster_Urbaneck_Kohlhepp_Kübrich_Schafmeister, place={Nuremberg},
title={Pitfalls and their Avoidability in the Double-Pulse Test}, booktitle={PCIM
Europe 2024; IEEE International Exhibition and Conference for Power Electronics,
Intelligent Motion, Renewable Energy and Energy Management}, author={Förster,
Nikolas and Urbaneck, Daniel and Kohlhepp, Benedikt and Kübrich, Daniel and Schafmeister,
Frank} }'
chicago: Förster, Nikolas, Daniel Urbaneck, Benedikt Kohlhepp, Daniel Kübrich, and
Frank Schafmeister. “Pitfalls and Their Avoidability in the Double-Pulse Test.”
In PCIM Europe 2024; IEEE International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management. Nuremberg,
n.d.
ieee: N. Förster, D. Urbaneck, B. Kohlhepp, D. Kübrich, and F. Schafmeister, “Pitfalls
and their Avoidability in the Double-Pulse Test,” Nuremberg.
mla: Förster, Nikolas, et al. “Pitfalls and Their Avoidability in the Double-Pulse
Test.” PCIM Europe 2024; IEEE International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management.
short: 'N. Förster, D. Urbaneck, B. Kohlhepp, D. Kübrich, F. Schafmeister, in: PCIM
Europe 2024; IEEE International Exhibition and Conference for Power Electronics,
Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.'
conference:
location: Nuremberg
date_created: 2024-05-19T14:10:49Z
date_updated: 2024-05-19T14:11:20Z
department:
- _id: '52'
language:
- iso: eng
place: Nuremberg
publication: PCIM Europe 2024; IEEE International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management
publication_status: inpress
status: public
title: Pitfalls and their Avoidability in the Double-Pulse Test
type: conference
user_id: '71291'
year: '2024'
...
---
_id: '53309'
author:
- first_name: Lukas
full_name: Hölsch, Lukas
last_name: Hölsch
- first_name: Anian
full_name: Brosch, Anian
id: '75779'
last_name: Brosch
orcid: 0000-0003-4871-1664
- first_name: Richard
full_name: Steckel, Richard
last_name: Steckel
- first_name: Tristan
full_name: Braun, Tristan
last_name: Braun
- first_name: Sebastian
full_name: Wendel, Sebastian
last_name: Wendel
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
citation:
ama: Hölsch L, Brosch A, Steckel R, et al. Insights and Challenges of Co-Simulation-Based
Optimal Pulse Pattern Evaluation for Electric Drives. IEEE Transactions on
Energy Conversion. Published online 2024:1-12. doi:10.1109/tec.2024.3374962
apa: Hölsch, L., Brosch, A., Steckel, R., Braun, T., Wendel, S., Böcker, J., &
Wallscheid, O. (2024). Insights and Challenges of Co-Simulation-Based Optimal
Pulse Pattern Evaluation for Electric Drives. IEEE Transactions on Energy Conversion,
1–12. https://doi.org/10.1109/tec.2024.3374962
bibtex: '@article{Hölsch_Brosch_Steckel_Braun_Wendel_Böcker_Wallscheid_2024, title={Insights
and Challenges of Co-Simulation-Based Optimal Pulse Pattern Evaluation for Electric
Drives}, DOI={10.1109/tec.2024.3374962},
journal={IEEE Transactions on Energy Conversion}, publisher={Institute of Electrical
and Electronics Engineers (IEEE)}, author={Hölsch, Lukas and Brosch, Anian and
Steckel, Richard and Braun, Tristan and Wendel, Sebastian and Böcker, Joachim
and Wallscheid, Oliver}, year={2024}, pages={1–12} }'
chicago: Hölsch, Lukas, Anian Brosch, Richard Steckel, Tristan Braun, Sebastian
Wendel, Joachim Böcker, and Oliver Wallscheid. “Insights and Challenges of Co-Simulation-Based
Optimal Pulse Pattern Evaluation for Electric Drives.” IEEE Transactions on
Energy Conversion, 2024, 1–12. https://doi.org/10.1109/tec.2024.3374962.
ieee: 'L. Hölsch et al., “Insights and Challenges of Co-Simulation-Based
Optimal Pulse Pattern Evaluation for Electric Drives,” IEEE Transactions on
Energy Conversion, pp. 1–12, 2024, doi: 10.1109/tec.2024.3374962.'
mla: Hölsch, Lukas, et al. “Insights and Challenges of Co-Simulation-Based Optimal
Pulse Pattern Evaluation for Electric Drives.” IEEE Transactions on Energy
Conversion, Institute of Electrical and Electronics Engineers (IEEE), 2024,
pp. 1–12, doi:10.1109/tec.2024.3374962.
short: L. Hölsch, A. Brosch, R. Steckel, T. Braun, S. Wendel, J. Böcker, O. Wallscheid,
IEEE Transactions on Energy Conversion (2024) 1–12.
date_created: 2024-04-06T13:48:59Z
date_updated: 2024-06-13T11:03:00Z
department:
- _id: '52'
doi: 10.1109/tec.2024.3374962
keyword:
- Electrical and Electronic Engineering
- Energy Engineering and Power Technology
language:
- iso: eng
page: 1-12
publication: IEEE Transactions on Energy Conversion
publication_identifier:
issn:
- 0885-8969
- 1558-0059
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: Insights and Challenges of Co-Simulation-Based Optimal Pulse Pattern Evaluation
for Electric Drives
type: journal_article
user_id: '66'
year: '2024'
...
---
_id: '54357'
author:
- first_name: Till
full_name: Piepenbrock, Till
last_name: Piepenbrock
- 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: 'Piepenbrock T, Schafmeister F, Böcker J. FEM Modelling of Dimensional-Resonant
Inductors for LLC Converters in MHz Range. In: SPEEDAM 2024; 27th International
Symposium on Power Electronics, Electrical Drives, Automation and Motion.
doi:10.1109/SPEEDAM61530.2024.10609111'
apa: Piepenbrock, T., Schafmeister, F., & Böcker, J. (n.d.). FEM Modelling of
Dimensional-Resonant Inductors for LLC Converters in MHz Range. SPEEDAM 2024;
27th International Symposium on Power Electronics, Electrical Drives, Automation
and Motion. 27th International Symposium on Power Electronics, Electrical
Drives, Automation and Motion, Ischia, near Naples, Italy. https://doi.org/10.1109/SPEEDAM61530.2024.10609111
bibtex: '@inproceedings{Piepenbrock_Schafmeister_Böcker, place={Ischia}, title={FEM
Modelling of Dimensional-Resonant Inductors for LLC Converters in MHz Range},
DOI={10.1109/SPEEDAM61530.2024.10609111},
booktitle={SPEEDAM 2024; 27th International Symposium on Power Electronics, Electrical
Drives, Automation and Motion}, author={Piepenbrock, Till and Schafmeister, Frank
and Böcker, Joachim} }'
chicago: Piepenbrock, Till, Frank Schafmeister, and Joachim Böcker. “FEM Modelling
of Dimensional-Resonant Inductors for LLC Converters in MHz Range.” In SPEEDAM
2024; 27th International Symposium on Power Electronics, Electrical Drives, Automation
and Motion. Ischia, n.d. https://doi.org/10.1109/SPEEDAM61530.2024.10609111.
ieee: 'T. Piepenbrock, F. Schafmeister, and J. Böcker, “FEM Modelling of Dimensional-Resonant
Inductors for LLC Converters in MHz Range,” presented at the 27th International
Symposium on Power Electronics, Electrical Drives, Automation and Motion, Ischia,
near Naples, Italy, doi: 10.1109/SPEEDAM61530.2024.10609111.'
mla: Piepenbrock, Till, et al. “FEM Modelling of Dimensional-Resonant Inductors
for LLC Converters in MHz Range.” SPEEDAM 2024; 27th International Symposium
on Power Electronics, Electrical Drives, Automation and Motion, doi:10.1109/SPEEDAM61530.2024.10609111.
short: 'T. Piepenbrock, F. Schafmeister, J. Böcker, in: SPEEDAM 2024; 27th International
Symposium on Power Electronics, Electrical Drives, Automation and Motion, Ischia,
n.d.'
conference:
end_date: 2024-06-21
location: Ischia, near Naples, Italy
name: 27th International Symposium on Power Electronics, Electrical Drives, Automation
and Motion
start_date: 2024-06-19
date_created: 2024-05-19T14:33:36Z
date_updated: 2024-09-11T06:33:24Z
department:
- _id: '52'
doi: 10.1109/SPEEDAM61530.2024.10609111
language:
- iso: eng
place: Ischia
publication: SPEEDAM 2024; 27th International Symposium on Power Electronics, Electrical
Drives, Automation and Motion
publication_status: inpress
related_material:
link:
- relation: confirmation
url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10609111
status: public
title: FEM Modelling of Dimensional-Resonant Inductors for LLC Converters in MHz Range
type: conference
user_id: '66'
year: '2024'
...
---
_id: '54356'
abstract:
- lang: eng
text: "Although there are numerous design and control methodologies for the LLC
resonant converter,\r\nthey often do not consider decentralized control strategies
to operate them as isolated DC-DC converters within a\r\ncascaded H-bridge. The
total output power of all LLC converters must be constant to supply a load such
as a wa-\r\nter electrolyzer. However, each individual LLC converter can vary
its output power as long as the total output\r\npower remains constant. This opens
new possibilities in increasing the system efficiency and robustness. Usually,\r\nthe
DC-link voltage of each module capacitor shows a 2nd harmonic voltage ripple.
However, the total stored energy\r\nin all DC-link capacitors is constant within
a grid period for a balanced three-phase system. By controlling each\r\nLLC converter’s
output power locally to be proportional to the energy stored in its DC-link capacitor,
modules with\r\na lower instantaneous DC-link voltage transfer less power to the
load than modules with a higher DC-link voltage.\r\nAs a result, a higher efficiency,
voltage gain and lower peak resonant capacitor voltage can be achieved with the\r\nsame
components. The 22.2kW experimental prototype of the LLC converter reaches an
efficiency of over 97% at\r\nresonance which is similar to the precalculated value."
author:
- first_name: Roland
full_name: Unruh, Roland
id: '34289'
last_name: Unruh
- 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: 'Unruh R, Böcker J, Schafmeister F. Experimentally Verified 22 kW, 40 kHz LLC
Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter.
In: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe.
IEEE. doi:https://doi.org/10.1109/ECCEEurope62508.2024.10751954'
apa: Unruh, R., Böcker, J., & Schafmeister, F. (n.d.). Experimentally Verified
22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded
H-Bridge Converter. ECCE Europe 2024; IEEE Energy Conversion Congress &
Exposition Europe. ECCE Europe 2024, Darmstadt, Germany. https://doi.org/10.1109/ECCEEurope62508.2024.10751954
bibtex: '@inproceedings{Unruh_Böcker_Schafmeister, place={Darmstadt}, title={Experimentally
Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1
MW Cascaded H-Bridge Converter}, DOI={https://doi.org/10.1109/ECCEEurope62508.2024.10751954},
booktitle={ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition
Europe}, publisher={IEEE}, author={Unruh, Roland and Böcker, Joachim and Schafmeister,
Frank} }'
chicago: 'Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “Experimentally
Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1
MW Cascaded H-Bridge Converter.” In ECCE Europe 2024; IEEE Energy Conversion
Congress & Exposition Europe. Darmstadt: IEEE, n.d. https://doi.org/10.1109/ECCEEurope62508.2024.10751954.'
ieee: 'R. Unruh, J. Böcker, and F. Schafmeister, “Experimentally Verified 22 kW,
40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge
Converter,” presented at the ECCE Europe 2024, Darmstadt, Germany, doi: https://doi.org/10.1109/ECCEEurope62508.2024.10751954.'
mla: Unruh, Roland, et al. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter
Design with New Control for a 1 MW Cascaded H-Bridge Converter.” ECCE Europe
2024; IEEE Energy Conversion Congress & Exposition Europe, IEEE, doi:https://doi.org/10.1109/ECCEEurope62508.2024.10751954.
short: 'R. Unruh, J. Böcker, F. Schafmeister, in: ECCE Europe 2024; IEEE Energy
Conversion Congress & Exposition Europe, IEEE, Darmstadt, n.d.'
conference:
end_date: 2024-09-06
location: Darmstadt, Germany
name: ECCE Europe 2024
start_date: 2024-09-02
date_created: 2024-05-19T14:26:29Z
date_updated: 2024-11-28T14:16:05Z
department:
- _id: '52'
doi: https://doi.org/10.1109/ECCEEurope62508.2024.10751954
keyword:
- Cascaded H-Bridge
- Converter Losses
- Decentralized Control
- Full-Bridge Converter
- LLC Resonant Converter
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/10751954
place: Darmstadt
publication: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe
publication_identifier:
isbn:
- 979-8-3503-6444-6
publication_status: accepted
publisher: IEEE
status: public
title: Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new
Control for a 1 MW Cascaded H-Bridge Converter
type: conference
user_id: '34289'
year: '2024'
...
---
_id: '58648'
author:
- first_name: Roland
full_name: Unruh, Roland
id: '34289'
last_name: Unruh
- first_name: 'Joachim '
full_name: 'Böcker, Joachim '
last_name: Böcker
- first_name: Frank
full_name: Schafmeister, Frank
id: '71291'
last_name: Schafmeister
citation:
ama: 'Unruh R, Böcker J, Schafmeister F. Experimentally Verified 22 kW, 40 kHz LLC
Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter.
In: Proceedings of the Energy Conversion Congress & Expo (ECCE Europe).
IEEE; 2024. doi:10.1109/ECCEEurope62508.2024.10751954'
apa: Unruh, R., Böcker, J., & Schafmeister, F. (2024). Experimentally Verified
22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded
H-Bridge Converter. Proceedings of the Energy Conversion Congress & Expo
(ECCE Europe). Energy Conversion Congress & Expo (ECCE Europe), Darmstadt.
https://doi.org/10.1109/ECCEEurope62508.2024.10751954
bibtex: '@inproceedings{Unruh_Böcker_Schafmeister_2024, title={Experimentally Verified
22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded
H-Bridge Converter}, DOI={10.1109/ECCEEurope62508.2024.10751954},
booktitle={Proceedings of the Energy Conversion Congress & Expo (ECCE Europe)},
publisher={IEEE}, author={Unruh, Roland and Böcker, Joachim and Schafmeister,
Frank}, year={2024} }'
chicago: Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “Experimentally
Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1
MW Cascaded H-Bridge Converter.” In Proceedings of the Energy Conversion Congress
& Expo (ECCE Europe). IEEE, 2024. https://doi.org/10.1109/ECCEEurope62508.2024.10751954.
ieee: 'R. Unruh, J. Böcker, and F. Schafmeister, “Experimentally Verified 22 kW,
40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge
Converter,” presented at the Energy Conversion Congress & Expo (ECCE Europe),
Darmstadt, 2024, doi: 10.1109/ECCEEurope62508.2024.10751954.'
mla: Unruh, Roland, et al. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter
Design with New Control for a 1 MW Cascaded H-Bridge Converter.” Proceedings
of the Energy Conversion Congress & Expo (ECCE Europe), IEEE, 2024, doi:10.1109/ECCEEurope62508.2024.10751954.
short: 'R. Unruh, J. Böcker, F. Schafmeister, in: Proceedings of the Energy Conversion
Congress & Expo (ECCE Europe), IEEE, 2024.'
conference:
end_date: 2024-09-06
location: Darmstadt
name: ' Energy Conversion Congress & Expo (ECCE Europe)'
start_date: 2024-09-02
date_created: 2025-02-14T15:30:36Z
date_updated: 2025-02-14T15:33:10Z
ddc:
- '620'
department:
- _id: '52'
doi: 10.1109/ECCEEurope62508.2024.10751954
file:
- access_level: closed
content_type: application/pdf
creator: schafmei
date_created: 2025-02-14T15:32:17Z
date_updated: 2025-02-14T15:32:17Z
file_id: '58649'
file_name: EPE_2024_09_02-Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter
Design with new Control for a 1 MW Cascaded H-Bridge Converter.pdf
file_size: 3829411
relation: main_file
success: 1
file_date_updated: 2025-02-14T15:32:17Z
has_accepted_license: '1'
language:
- iso: eng
publication: Proceedings of the Energy Conversion Congress & Expo (ECCE Europe)
publication_status: published
publisher: IEEE
status: public
title: Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new
Control for a 1 MW Cascaded H-Bridge Converter
type: conference
user_id: '71291'
year: '2024'
...
---
_id: '58756'
abstract:
- lang: eng
text: Der Permanentmagnet-Synchronmotor (PMSM) ist aufgrund seiner hohen Leistungs-
und Drehmomentdichte bezogen auf Volumen und Gewicht ein häufig verwendeter Traktionsmotor
in Automobilanwendungen. Jene Charakteristika werden jedoch maßgeblich durch Temperaturhöchstwerte
begrenzt. Hinzu kommt, dass die Temperatur wichtiger Rotorkomponenten nicht wirtschaftlich
messbar ist. Temperaturschätzverfahren wie modellbasierte Ansätze sind potentiell
in der Lage, das Problem der fehlenden Temperaturinformation zu relativieren,
ohne zusätzliche Geräte zu erfordern. Diese Arbeit stellt ein Portfolio von thermischen
Modellen aus dem Bereich des maschinellen Lernens zusammen. Die Untersuchung basiert
auf einem PMSM-Datensatz, der auf einem Prüfstand aufgezeichnet wurde. Neben dem
durchschnittlichen Schätzfehler diktiert die erforderliche Anzahl von Modellparametern
zahlreiche Auslegungsentscheidungen. Der gesamte Entwurfsprozess eines Modells
aus dem maschinellen Lernen wird beleuchtet und für verschiedene lineare, sowie
baumbasierte Modelle; vorschiebende, rekurrente und faltende neuronale Netze als
auch für verschiedene hybride Modellierungsansätze durchgeführt. Desweiteren wird
der hybride Modellierungsansatz über thermische neuronale Netze besonders hervorgehoben.
Sie setzen sich aus neuronalen Netzen und einem thermischen Ersatzschaltbild zusammen
und wurden erstmals vom Autor dieser Arbeit veröffentlicht. Schließlich wird ein
von Experten entworfenes, datengetriebenes thermisches Netz mit konzentrierten
Parametern über verschiedene Algorithmen optimiert und als Stand der Technik herangezogen.
- lang: eng
text: The permanent magnet synchronous motor (PMSM) is a commonly used traction
motor in automotive applications due to its high power and torque density with
respect to volume and weight. These characteristics are constrained by the maximum
temperature at which vital components can still operate without harm. Moreover,
important rotor component temperatures cannot be measured economically. Temperature
estimation methods such as model-based approaches can alleviate the problem of
missing thermal information at potentially no additionally required equipment.
This work collates a portfolio of data-driven thermal models from the domain of
machine learning and investigates their feasibility for the task of accurate thermal
modeling on the example of a PMSM data set recorded on a test bench. Aside from
the average estimation error, the required amount of model parameters as an approximation
for the computational demand dictates design decisions throughout. The whole process
of designing a machine learning model is illuminated and carried out for varying
linear models; tree-based models; feed-forward, recurrent, and convolutional neural
networks, as well as various hybrid gray-box modeling approaches. Moreover, a
hybrid modeling paradigm with thermal neural networks is highlighted, which was
first introduced by this work's author. Eventually, an expert-designed, data-driven
lumped-parameter thermal network is optimized under different algorithms in order
to put machine learning models to the test against the state of the art of thermal
modeling.
author:
- first_name: Wilhelm
full_name: Kirchgässner, Wilhelm
id: '49265'
last_name: Kirchgässner
orcid: 0000-0001-9490-1843
citation:
ama: Kirchgässner W. Data-Driven Thermal Modeling of a Permanent Magnet Synchronous
Motor with Machine Learning. LibreCat University; 2024. doi:10.17619/UNIPB/1-2068
apa: Kirchgässner, W. (2024). Data-driven thermal modeling of a permanent magnet
synchronous motor with machine learning. LibreCat University. https://doi.org/10.17619/UNIPB/1-2068
bibtex: '@book{Kirchgässner_2024, title={Data-driven thermal modeling of a permanent
magnet synchronous motor with machine learning}, DOI={10.17619/UNIPB/1-2068},
publisher={LibreCat University}, author={Kirchgässner, Wilhelm}, year={2024} }'
chicago: Kirchgässner, Wilhelm. Data-Driven Thermal Modeling of a Permanent Magnet
Synchronous Motor with Machine Learning. LibreCat University, 2024. https://doi.org/10.17619/UNIPB/1-2068.
ieee: W. Kirchgässner, Data-driven thermal modeling of a permanent magnet synchronous
motor with machine learning. LibreCat University, 2024.
mla: Kirchgässner, Wilhelm. Data-Driven Thermal Modeling of a Permanent Magnet
Synchronous Motor with Machine Learning. LibreCat University, 2024, doi:10.17619/UNIPB/1-2068.
short: W. Kirchgässner, Data-Driven Thermal Modeling of a Permanent Magnet Synchronous
Motor with Machine Learning, LibreCat University, 2024.
date_created: 2025-02-21T11:38:22Z
date_updated: 2025-02-21T11:41:01Z
department:
- _id: '52'
doi: 10.17619/UNIPB/1-2068
language:
- iso: eng
publisher: LibreCat University
status: public
title: Data-driven thermal modeling of a permanent magnet synchronous motor with machine
learning
type: dissertation
user_id: '71353'
year: '2024'
...
---
_id: '58757'
abstract:
- lang: eng
text: On-bord DC-DC-Konverter sind das Bindeglied zwischen der Traktionsbatterie
und der Hilfsbatterie und versorgen wichtige Komponenten des Elektrofahrzeugs.
Diese Arbeit adressiert den weiten Spannungsbereich des Wandlers, der eine Folge
der variierenden Spannungen der Batterien ist. Als potentielle Topologien werden
der LLC Resonanzwandler, der aktiv geklemmte Flusswandler und der isolierte Vollbrücken-Konverter
untersucht.Zunächst wird hierbei der LLC untersucht und verschiedene Modulationstechniken
zur Abdeckung des weiten Spannungsbereichs gegenübergestellt, um zu zeigen, dass
die Frequenzverdoppler-Modulation und die alternierende Phasenverschiebungsmodulation
die maximale Temperatur der Halbleiter deutlich senken. Zum Wechsel zwischen Voll-
und Halbbrückenmodulation wird eine Modulationstechnik vorgeschlagen, welche den
transienten Magnetisierungsfluss um über 70 % respektive des konventionellen Konzept
senkt. Für den aktiv geklemmten Flusswandler wird ein verbessertes Modell vorgestellt,
das die Blockierspannung sehr genau modelliert. Zudem wird eine Snubber-Schaltung
vorgeschlagen, welche die sekundärseitige transiente Blockierspannung deutlich
reduziert. Für den isolierten Vollbrücken-Konverter werden hart- und weichschaltende
Modulationstechniken analysiert und eine hartschaltende Frequenz-Verdoppler-Modulationstechnik
vorgeschlagen, welche die maximale Schaltertemperatur deutlich reduziert und eine
Modulationstechnik mit Beschaltung vorgestellt, um zwischen dem Voll- und Halbbrückenmodus
zu wechseln. Die zuvor erarbeiteten Konverter werden unter Anwendung einer vorgestellten
Designmethodik verglichen und messtechnisch evaluiert.
- lang: eng
text: 'On-board DC-DC converters are the connecting link between the traction battery
and the auxiliary battery and supply energy to the crucial components of an electrical
vehicle. This work addresses DC-DC converters of a wide conversion range necessary
to cover the voltage-transfer ratio resulting from the varying state of charge
of the traction and auxiliary battery and investigates three topologies for this
application: the LLC resonant converter, the active-clamp forward converter and
the isolated full-bridge converter. At first, the LLC resonant converter is analyzed
and several operating modes are investigated and proposed to better cover the
wide transfer ratio. The operating modes are benchmarked showing that the alternating-asymmetrical
phase shift modulation and the frequency-doubler modulations can significantly
reduce the MOSFET temperature. To switch from full-bridge mode to half-bridge
mode, an improved morphing modulation is proposed that reduces the flux by about
70 % compared to the conventional concept. Finally, an integrated planar transformer
is proposed to increase the power density of the LLC.The active-clamp forward
converter is investigated to propose an accurate steady-state model. A snubber
circuitry is presented to limit the voltage overshoot of the synchronous rectifier.
The isolated full-bridge converter is investigated in its hard- and soft-switching
operation. A hard-switched frequency-doubler modulation is proposed to reduce
the maximum temperature significantly. Additionally, a steady-state model is derived
to accurately calculate the current shape of the converter and a topology morphing
concept is proposed to limit the blocking voltage of the secondary-side semiconductors
during mode transition. Finally, a topology comparison and design methodology
is proposed that enables a fair topology comparison. The three aforementioned
topologies are experimentally evaluated.'
author:
- first_name: Philipp
full_name: Rehlaender, Philipp
id: '69469'
last_name: Rehlaender
citation:
ama: Rehlaender P. Single-Stage DC-DC Converters for a Wide Input & Output
Voltage Range. LibreCat University; 2024. doi:10.17619/UNIPB/1-2148
apa: Rehlaender, P. (2024). Single-stage DC-DC converters for a wide input &
output voltage range. LibreCat University. https://doi.org/10.17619/UNIPB/1-2148
bibtex: '@book{Rehlaender_2024, title={Single-stage DC-DC converters for a wide
input & output voltage range}, DOI={10.17619/UNIPB/1-2148},
publisher={LibreCat University}, author={Rehlaender, Philipp}, year={2024} }'
chicago: Rehlaender, Philipp. Single-Stage DC-DC Converters for a Wide Input
& Output Voltage Range. LibreCat University, 2024. https://doi.org/10.17619/UNIPB/1-2148.
ieee: P. Rehlaender, Single-stage DC-DC converters for a wide input &
output voltage range. LibreCat University, 2024.
mla: Rehlaender, Philipp. Single-Stage DC-DC Converters for a Wide Input &
Output Voltage Range. LibreCat University, 2024, doi:10.17619/UNIPB/1-2148.
short: P. Rehlaender, Single-Stage DC-DC Converters for a Wide Input & Output
Voltage Range, LibreCat University, 2024.
date_created: 2025-02-21T11:40:18Z
date_updated: 2025-02-21T11:40:59Z
department:
- _id: '52'
doi: 10.17619/UNIPB/1-2148
language:
- iso: eng
publisher: LibreCat University
status: public
title: Single-stage DC-DC converters for a wide input & output voltage range
type: dissertation
user_id: '71353'
year: '2024'
...