@inproceedings{29871,
  abstract     = {{LLC resonant converters typically employ power
MOSFETs in their inverter stage. The generally weak reverse
recovery behaviour of the intrinsic body diodes of those
MOSFETs causes significant turn-on losses when being forced
to hard commutations. Continuous operation in this way will
lead to self-destruction of the transistors. Consequently,
zero-voltage switching (ZVS) is essential in a MOSFET-based
inverter stage. To ensure ZVS, the LLC converter is operated in
the inductive region. On the contrary, IGBTs show dominant
turn-off losses and are therefore conventionally not applied in
LLC converters typically requiring high switching frequencies
to achieve low output voltages. However, if the LLC converter
is intentionally designed for capacitive operation, zero-current
switching (ZCS) is enabled and thus robust and cost-efficient
IGBTs can be applied in the inverter stage. The aim of this work
is to investigate the use IGBTs in the inverter of an LLC
converter. The theory behind the capacitive operated LLC is
derived using a switched simulation model and compared with
the fundamental harmonic approximation (FHA). The results
prove FHA to be useless for practical converter design. Instead,
a stress value analysis based on switched model simulations is
proposed to the design a capacitive operated LLC utilizing ZCS.
A 2 kW prototype for on-board EV applications was built to
verify the theory and design approach. The prototype confirms
the derived theory and thus the deployment of IGBTs in the
inverter stage of LLC resonant converters. Synchronous
rectification turns out to require a specific control solution, but
if given the resulting efficiency in the most critical operation
point exceeds the value of a MOSFET-based (inductive
operated) LLC-design of an identical application. Therefore,
this concept should be further developed.}},
  author       = {{Urbaneck, Daniel and Rehlaender, Philipp and Böcker, Joachim and Schafmeister, Frank}},
  booktitle    = {{2021 IEEE Applied Power Electronics Conference and Exposition (APEC)}},
  location     = {{Arizona}},
  title        = {{{LLC Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and Verification of a 2 kW DC-DC Converter for EVs}}},
  year         = {{2021}},
}

@article{30030,
  author       = {{Stender, Marius and Wallscheid, Oliver and Böcker, Joachim}},
  issn         = {{0885-8993}},
  journal      = {{IEEE Transactions on Power Electronics}},
  keywords     = {{Electrical and Electronic Engineering}},
  number       = {{11}},
  pages        = {{13261--13274}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Accurate Torque Control for Induction Motors by Utilizing a Globally Optimized Flux Observer}}},
  doi          = {{10.1109/tpel.2021.3080129}},
  volume       = {{36}},
  year         = {{2021}},
}

@inproceedings{30031,
  author       = {{Stender, Marius and Wallscheid, Oliver and Böcker, Joachim}},
  booktitle    = {{2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC)}},
  publisher    = {{IEEE}},
  title        = {{{Accurate Torque Estimation for Induction Motors by Utilizing a Hybrid Machine Learning Approach}}},
  doi          = {{10.1109/pemc48073.2021.9432615}},
  year         = {{2021}},
}

@inproceedings{30029,
  author       = {{Stender, Marius and Wallscheid, Oliver and Böcker, Joachim}},
  booktitle    = {{IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society}},
  publisher    = {{IEEE}},
  title        = {{{Combined Electrical-Thermal Gray-Box Model and Parameter Identification of an Induction Motor}}},
  doi          = {{10.1109/iecon48115.2021.9589225}},
  year         = {{2021}},
}

@inproceedings{30032,
  author       = {{Stender, Marius and Wallscheid, Oliver and Böcker, Joachim}},
  booktitle    = {{2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC)}},
  publisher    = {{IEEE}},
  title        = {{{Gray-Box Loss Model for Induction Motor Drives}}},
  doi          = {{10.1109/pemc48073.2021.9432491}},
  year         = {{2021}},
}

@inproceedings{30084,
  author       = {{Karakaya, Kadiray and Bodden, Eric}},
  booktitle    = {{2021 IEEE 21st International Working Conference on Source Code Analysis and Manipulation (SCAM)}},
  publisher    = {{IEEE}},
  title        = {{{SootFX: A Static Code Feature Extraction Tool for Java and Android}}},
  doi          = {{10.1109/scam52516.2021.00030}},
  year         = {{2021}},
}

@inproceedings{29665,
  author       = {{Hanke, Sören and Wallscheid, Oliver and Böcker, Joachim}},
  publisher    = {{IET Digital Library}},
  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          = {{10.1049%2Ficp.2021.1122}},
  year         = {{2021}},
}

@article{29664,
  author       = {{Wallscheid, Oliver}},
  journal      = {{IEEE Open Journal of Industry Applications}},
  publisher    = {{IEEE}},
  title        = {{{Thermal Monitoring of Electric Motors: State-of-the-Art Review and Future Challenges}}},
  year         = {{2021}},
}

@article{21251,
  author       = {{Kirchgässner, Wilhelm and Wallscheid, Oliver and Böcker, Joachim}},
  issn         = {{0885-8969}},
  journal      = {{IEEE Transactions on Energy Conversion}},
  number       = {{3}},
  pages        = {{2059 -- 2067}},
  title        = {{{Data-Driven Permanent Magnet Temperature Estimation in Synchronous Motors with Supervised Machine Learning: A Benchmark}}},
  doi          = {{10.1109/tec.2021.3052546}},
  volume       = {{36}},
  year         = {{2021}},
}

@article{21254,
  author       = {{Balakrishna, Praneeth and Book, Gerrit and Kirchgässner, Wilhelm and Schenke, Maximilian and Traue, Arne and Wallscheid, Oliver}},
  issn         = {{2475-9066}},
  journal      = {{Journal of Open Source Software}},
  title        = {{{gym-electric-motor (GEM): A Python toolbox for the simulation of electric drive systems}}},
  doi          = {{10.21105/joss.02498}},
  year         = {{2021}},
}

@article{25031,
  author       = {{Schenke, Maximilian and Wallscheid, Oliver}},
  issn         = {{2644-1284}},
  journal      = {{IEEE Open Journal of the Industrial Electronics Society}},
  pages        = {{388--400}},
  title        = {{{A Deep Q-Learning Direct Torque Controller for Permanent Magnet Synchronous Motors}}},
  doi          = {{10.1109/ojies.2021.3075521}},
  year         = {{2021}},
}

@article{29662,
  author       = {{Schenke, Maximilian and Wallscheid, Oliver}},
  journal      = {{arXiv preprint arXiv:2105.08990}},
  title        = {{{Improved Exploring Starts by Kernel Density Estimation-Based State-Space Coverage Acceleration in Reinforcement Learning}}},
  year         = {{2021}},
}

@article{21557,
  author       = {{Brosch, Anian and Wallscheid, Oliver and Böcker, Joachim}},
  issn         = {{1551-3203}},
  journal      = {{IEEE Transactions on Industrial Informatics}},
  title        = {{{Torque and Inductances Estimation for Finite Model Predictive Control of Highly Utilized Permanent Magnet Synchronous Motors}}},
  doi          = {{10.1109/tii.2021.3060469}},
  year         = {{2021}},
}

@inproceedings{25297,
  author       = {{Alshomary, Milad and Gurcke, Timon and Syed, Shahbaz and Heinisch, Philipp and Spliethöver, Maximilian and Cimiano, Philipp and Potthast, Martin and Wachsmuth, Henning}},
  booktitle    = {{Proceedings of the 8th Workshop on Argument Mining}},
  pages        = {{184 -- 189}},
  title        = {{{Key Point Analysis via Contrastive Learning and Extractive Argument Summarization}}},
  year         = {{2021}},
}

@inproceedings{25294,
  author       = {{Nouri, Zahra and Prakash, Nikhil and Gadiraju, Ujwal and Wachsmuth, Henning}},
  booktitle    = {{Proceedings of the Ninth AAAI Conference on Human Computation and Crowdsourcing, HCOMP 2021}},
  title        = {{{iClarify - A Tool to Help Requesters Iteratively Improve Task Descriptions in Crowdsourcing}}},
  year         = {{2021}},
}

@inproceedings{30217,
  author       = {{Coy, Sam and Czumaj, Artur and Feldmann, Michael and Hinnenthal, Kristian and Kuhn, Fabian and Scheideler, Christian and Schneider, Philipp and Struijs, Martijn}},
  booktitle    = {{25th International Conference on Principles of Distributed Systems, OPODIS 2021, December 13-15, 2021, Strasbourg, France}},
  editor       = {{Bramas, Quentin and Gramoli, Vincent and Milani, Alessia}},
  pages        = {{11:1–11:23}},
  publisher    = {{Schloss Dagstuhl - Leibniz-Zentrum für Informatik}},
  title        = {{{Near-Shortest Path Routing in Hybrid Communication Networks}}},
  doi          = {{10.4230/LIPIcs.OPODIS.2021.11}},
  volume       = {{217}},
  year         = {{2021}},
}

@inproceedings{30340,
  author       = {{Hagemeyer, Marc and Wallmeier, Peter and Schafmeister, Frank and Böcker, Joachim}},
  booktitle    = {{Proc. 36th IEEE Applied Power Electronics Conference (APEC)}},
  location     = {{Phoenix, AZ, USA}},
  pages        = {{569 -- 576}},
  publisher    = {{IEEE}},
  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}}},
  year         = {{2021}},
}

@misc{30348,
  author       = {{Schafmeister, Frank}},
  booktitle    = {{Power System Design (PSD) Web Magazine}},
  title        = {{{Transformerless On-Board Chargers at Three- and Single-Phase Operation: Compensation of LF Common-Mode Noise by the Internal DC/DC-Stage}}},
  year         = {{2021}},
}

@inproceedings{21593,
  author       = {{Yigitbas, Enes and Jovanovikj, Ivan and Engels, Gregor}},
  booktitle    = {{Proceedings of the 18th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2021) }},
  publisher    = {{Springer}},
  title        = {{{Simplifying Robot Programming using Augmented Reality and End-User Development}}},
  year         = {{2021}},
}

@inproceedings{21707,
  author       = {{Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}},
  booktitle    = {{Proceedings of the 13th ACM SIGCHI Symposium on Engineering Interactive Computing Systems (EICS 2021)}},
  publisher    = {{ACM}},
  title        = {{{Using Augmented Reality for Enhancing Planning and Measurements in the Scaffolding Business}}},
  year         = {{2021}},
}