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307 Publications
2024 | Journal Article | LibreCat-ID: 53309
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.
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| DOI
2023 | Journal Article | LibreCat-ID: 43456
A. Brosch, O. Wallscheid, and J. Böcker, “Time-Optimal Model Predictive Control of Permanent Magnet Synchronous Motors Considering Current and Torque Constraints,” IEEE Transactions on Power Electronics, pp. 1–14, 2023, doi: 10.1109/tpel.2023.3265705.
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2023 | Journal Article | LibreCat-ID: 46147
A. Brosch, F. Tinazzi, O. Wallscheid, M. Zigliotto, and J. Böcker, “Finite Set Sensorless Control With Minimum a Priori Knowledge and Tuning Effort for Interior Permanent Magnet Synchronous Motors,” IEEE Transactions on Power Electronics, 2023, doi: 10.1109/tpel.2023.3294557.
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2023 | Journal Article | LibreCat-ID: 48059
F. Winkel, O. Wallscheid, P. Scholz, and J. Böcker, “Pseudo-Labeling Machine Learning Algorithm for Predictive Maintenance of Relays,” IEEE Open Journal of the Industrial Electronics Society, pp. 1–14, 2023, doi: 10.1109/ojies.2023.3323870.
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2023 | Journal Article | LibreCat-ID: 48058
F. Winkel, J. Deuse-Kleinsteuber, and J. Böcker, “Run-to-Failure Relay Dataset for Predictive Maintenance Research With Machine Learning,” IEEE Transactions on Reliability, pp. 1–14, 2023, doi: 10.1109/tr.2023.3255786.
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2023 | Conference Paper | LibreCat-ID: 48352
R. Unruh, J. Böcker, and F. Schafmeister, “An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors,” presented at the 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe), Aalborg, Denmark, 2023, doi: 10.23919/epe23ecceeurope58414.2023.10264313.
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2023 | Conference Paper | LibreCat-ID: 48093
M. Pena, M. Meyer, O. Wallscheid, and J. Böcker, “Fade-Over Strategy for use of Model Predictive Direct Self-Control with Field-Oriented Control,” presented at the 2023 IEEE International Electric Machines and Drives Conference (IEMDC), San Francisco, 2023, doi: 10.1109/iemdc55163.2023.10239056.
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2023 | Journal Article | LibreCat-ID: 48092
M. Pena, M. Meyer, O. Wallscheid, and J. Böcker, “Model Predictive Direct Self-Control for Six-Step Operation of Permanent-Magnet Synchronous Machines,” IEEE Transactions on Power Electronics, vol. 38, no. 10, pp. 12416–12429, 2023, doi: 10.1109/tpel.2023.3286713.
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2023 | Conference Paper | LibreCat-ID: 53310
E. G. Gedlu, O. Wallscheid, J. Böcker, and O. Nelles, “Online system identification and excitation for thermal monitoring of electric machines using machine learning and model predictive control,” 2023, doi: 10.1109/sdemped54949.2023.10271427.
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2023 | Journal Article | LibreCat-ID: 53543
F. Winkel, P. Scholz, O. Wallscheid, and J. Böcker, “Reducing Contact Bouncing of a Relay by Optimizing the Switch Signal During Run-Time,” IEEE Transactions on Automation Science and Engineering, pp. 1–11, 2023, doi: 10.1109/tase.2023.3322762.
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2022 | Conference Paper | LibreCat-ID: 30349
N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, and J. Böcker, “An Open-Source Transistor Database and Toolbox as an Unified Software Engineering Tool for Managing and Evaluating Power Transistors,” presented at the 37th IEEE Applied Power Electronics Conference (APEC 22), Houston, TX, USA.
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2022 | Conference Paper | LibreCat-ID: 30350
L. Keuck, F. Schafmeister, and J. Böcker, “Robust Hysteresis Control for LLC Resonant Converters Using a Fully Isolated Measurement Scheme,” presented at the IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM 22), Nuremberg, Germany.
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2022 | Journal Article | LibreCat-ID: 34533
A. Brosch, O. Wallscheid, and J. Böcker, “Model Predictive Torque Control for Permanent Magnet Synchronous Motors Using a Stator-Fixed Harmonic Flux Reference Generator in the Entire Modulation Range,” IEEE Transactions on Power Electronics, 2022, doi: 10.1109/tpel.2022.3229619.
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2022 | Conference Paper | LibreCat-ID: 32796
J. Böcker, “Concept Study of an LLC Converter with Magnetically Resonant Inductor,” presented at the SPEEDAM, Sorrento, Italy, 2022, doi: 10.1109/speedam53979.2022.9842047.
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2022 | Journal Article | LibreCat-ID: 33459
A. Brosch, O. Wallscheid, and J. Böcker, “Long-Term Memory Recursive Least Squares Online Identification of Highly Utilized Permanent Magnet Synchronous Motors for Finite-Control-Set Model Predictive Control,” IEEE Transactions on Power Electronics, 2022, doi: 10.1109/tpel.2022.3206598.
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2022 | Conference Paper | LibreCat-ID: 33489
J. Lange, D. Schmies, K. S. C. Stille, J. Böcker, and O. Wallscheid, “Experimental Comparison of FPGA-Implemented Model Predictive Voltage Control to Cascaded Proportional Resonant Control for a Three-Phase Four-Wire Three-Level Grid-Forming Inverter of 250 kVA,” presented at the EPE’22 ECCE Europe, Hannover, 2022.
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2022 | Conference Paper | LibreCat-ID: 34299
M. Stender, M. Becker, O. Wallscheid, and J. Böcker, “Adaptive Operating Strategy for Induction Motors Under Changing Electrical-Thermal Conditions,” presented at the 48th Annual Conference of the Industrial Electronics Society IECON 2022 Conference, Brüssel, 2022, doi: 10.1109/IECON49645.2022.9968695.
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2022 | Conference Paper | LibreCat-ID: 35125
N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, and J. Böcker, “An Open-Source Transistor Database and Toolbox as a Unified Software Engineering Tool for Managing and Evaluating Power Transistors,” 2022, doi: 10.1109/apec43599.2022.9773701.
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2022 | Conference Paper | LibreCat-ID: 35127
N. Förster, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, and J. Böcker, “An Open-Source FEM Magnetics Toolbox for Power Electronic Magnetic Components,” in PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2022, pp. 1–10, doi: 10.30420/565822103.
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2022 | Journal Article | LibreCat-ID: 34065
W. Kirchgässner, O. Wallscheid, and J. Böcker, “Thermal neural networks: Lumped-parameter thermal modeling with state-space machine learning,” Engineering Applications of Artificial Intelligence, vol. 117, Art. no. 105537, 2022, doi: 10.1016/j.engappai.2022.105537.
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2022 | Conference Paper | LibreCat-ID: 32859
W. Kirchgässner, O. Wallscheid, and J. Böcker, “Learning Thermal Properties and Temperature Models of Electric Motors with Neural Ordinary Differential Equations,” 2022, doi: 10.23919/ipec-himeji2022-ecce53331.2022.9807209.
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2022 | Journal Article | LibreCat-ID: 44163
P. Rehlaender, O. Wallscheid, F. Schafmeister, and J. Böcker, “LLC Resonant Converter Modulations for Reduced Junction Temperatures in Half-Bridge Mode and Transformer Flux in the On-the-Fly Morphing Thereto,” IEEE Transactions on Power Electronics, vol. 37, no. 11, pp. 13413–13427, 2022, doi: 10.1109/tpel.2022.3180758.
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2022 | Conference Paper | LibreCat-ID: 42894
W. Kirchgässner, D. Wöckinger, O. Wallscheid, G. Bramerdorfer, and J. Böcker, “Application of Thermal Neural Networks on a Small-Scale Electric Motor,” in IKMT 2022; 13. GMM/ETG-Symposium, 2022, pp. 1–6.
LibreCat
2022 | Conference Paper | LibreCat-ID: 44164
P. Rehlaender, B. Korthauer, F. Schafmeister, and J. Böcker, “Experimental Demonstration of a 2.2kW Active-Clamp Converter for High-Current Wide-Voltage-Transfer Ratio Applications,” in 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), Hannover, Germany, 2022, p. P.1-P.11.
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2022 | Conference Paper | LibreCat-ID: 44161
P. Rehlaender, F. Schafmeister, and J. Böcker, “Phase-Shift Modulation for Flying-Capacitor DC-DC Converters,” in 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), Hannover, Germany, 2022, pp. 1–9.
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2022 | Journal Article | LibreCat-ID: 31085
A. Brosch, J. Rauhaus, O. Wallscheid, J. Böcker, and D. Zimmer, “Data-Driven Adaptive Torque Oscillation Compensation for Multi-Motor Drive Systems,” IEEE Open Journal of Industry Applications, 2022, doi: 10.1109/ojia.2022.3171333.
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2022 | Conference Paper | LibreCat-ID: 34176
R. Unruh, F. Schafmeister, and J. Böcker, “Zero-Sequence Voltage Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%,” presented at the 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), Hanover, Germany, 2022.
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2022 | Conference Paper | LibreCat-ID: 35126
N. Förster et al., “An Open-Source FEM Magnetic Toolbox for Calculating Electric and Thermal Behavior of Power Electronic Magnetic Components,” in 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.9.
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2021 | Book | LibreCat-ID: 29876
D. Schröder and J. Böcker, Elektrische Antriebe – Regelung von Antriebssystemen, 5th ed. Springer Nature, 2021.
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2021 | Conference Paper | LibreCat-ID: 29849
B. Strothmann, F. Schafmeister, and J. Böcker, “Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV Charger,” 2021, doi: 10.1109/apec42165.2021.9487462.
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2021 | Journal Article | LibreCat-ID: 29657
A. Brosch, O. Wallscheid, and J. Böcker, “Model Predictive Control of Permanent Magnet Synchronous Motors in the Overmodulation Region Including Six-Step Operation,” IEEE Open Journal of Industry Applications, vol. 2, pp. 47–63, 2021, doi: 10.1109/OJIA.2021.3066105.
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2021 | Conference Paper | LibreCat-ID: 29663
E. G. Gedlu, O. Wallscheid, and J. Böcker, “Temperature estimation of electric machines using a hybrid model of feed-forward neural and low-order lumped-parameter thermal networks,” in 2021 IEEE International Electric Machines & Drives Conference (IEMDC), 2021, pp. 1–8, doi: 10.1109/IEMDC47953.2021.9449548.
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2021 | Journal Article | LibreCat-ID: 29892
P. Rehlaender, F. Schafmeister, and J. Böcker, “Interleaved Single-Stage LLC Converter Design Utilizing Half- and Full-Bridge Configurations for Wide Voltage Transfer Ratio Applications,” IEEE Transactions on Power Electronics, vol. 36, no. 9, pp. 10065–10080, 2021, doi: 10.1109/tpel.2021.3067843.
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2021 | Conference Paper | LibreCat-ID: 29895
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: 10.1109/apec42165.2021.9487130.
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| DOI
2021 | Conference Paper | LibreCat-ID: 29850
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 PCIM Europe digital days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2021, pp. 1–8.
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2021 | Conference Paper | LibreCat-ID: 29871
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.
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2021 | Journal Article | LibreCat-ID: 30030
M. Stender, O. Wallscheid, and J. Böcker, “Accurate Torque Control for Induction Motors by Utilizing a Globally Optimized Flux Observer,” IEEE Transactions on Power Electronics, vol. 36, no. 11, pp. 13261–13274, 2021, doi: 10.1109/tpel.2021.3080129.
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2021 | Conference Paper | LibreCat-ID: 30031
M. Stender, O. Wallscheid, and J. Böcker, “Accurate Torque Estimation for Induction Motors by Utilizing a Hybrid Machine Learning Approach,” 2021, doi: 10.1109/pemc48073.2021.9432615.
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2021 | Conference Paper | LibreCat-ID: 30029
M. Stender, O. Wallscheid, and J. Böcker, “Combined Electrical-Thermal Gray-Box Model and Parameter Identification of an Induction Motor,” 2021, doi: 10.1109/iecon48115.2021.9589225.
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2021 | Conference Paper | LibreCat-ID: 30032
M. Stender, O. Wallscheid, and J. Böcker, “Gray-Box Loss Model for Induction Motor Drives,” 2021, doi: 10.1109/pemc48073.2021.9432491.
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2021 | Conference Paper | LibreCat-ID: 29665
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: 10.1049%2Ficp.2021.1122.
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2021 | Journal Article | LibreCat-ID: 21251
W. Kirchgässner, O. Wallscheid, and J. Böcker, “Data-Driven Permanent Magnet Temperature Estimation in Synchronous Motors with Supervised Machine Learning: A Benchmark,” IEEE Transactions on Energy Conversion, vol. 36, no. 3, pp. 2059–2067, 2021, doi: 10.1109/tec.2021.3052546.
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2021 | Journal Article | LibreCat-ID: 21557
A. Brosch, O. Wallscheid, and J. Böcker, “Torque and Inductances Estimation for Finite Model Predictive Control of Highly Utilized Permanent Magnet Synchronous Motors,” IEEE Transactions on Industrial Informatics, 2021, doi: 10.1109/tii.2021.3060469.
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2021 | Conference Paper | LibreCat-ID: 30340
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 Proc. 36th IEEE Applied Power Electronics Conference (APEC), Phoenix, AZ, USA, 2021, pp. 569–576.
LibreCat
2021 | Conference Paper | LibreCat-ID: 29938
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: https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542.
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2021 | Conference Paper | LibreCat-ID: 29899
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: 10.23919/EPE21ECCEEurope50061.2021.9570674.
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2021 | Preprint | LibreCat-ID: 29655
W. Kirchgässner, O. Wallscheid, and J. Böcker, “Thermal Neural Networks: Lumped-Parameter Thermal Modeling With State-Space Machine Learning,” arXiv preprint arXiv:2103.16323. 2021.
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2021 | Conference Paper | LibreCat-ID: 29893
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: 10.1109/apec42165.2021.9487104.
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2021 | Conference Paper | LibreCat-ID: 22218
S. Krauter et al., “Projekt Art-D Grids: Nachhaltige und stabile Microgrids in Afrika - eine Plattform für Forschung und Lehre für die Entwicklung,” in Tagungsband des 36. PV-Symposiums, 18.-26 Mai 2021, Staffelstein / online, 2021, pp. 305–309.
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