Model Predictive Control of Multi-Phase Thyristor Matrix Converters
Project acronym: DFG-MPCMC
Funding period: 3 years with extension (2013-2018)
Project partner: German Research Foundation (DFG) https://gepris.dfg.de/gepris/projekt/245152336
Motivation
Turbine generator sets for generation of electric energy with power ratings of several 100 MW are typically connected directly to the electric grid. Thus, the turbine is operated at fixed speed, resulting in a drop of efficiency at partial load. If the turbine speed could be adjusted at partial load, the gain of efficiency would be up to 25 %. Matrix or cyclo converters can provide frequency-elastic coupling and would allow speed-variable operation of the turbine. Due to high robustness and small losses, thyristor converters are favoured particularly in the range of very high-power rating. Unfortunately, the standard three-phase cyclo converter can only be used up to frequency ratios up to 1:3 between generator and mains which is not given here. However, if the number of phases is increased (e.g. up to N = 27), the distortions would be within an acceptable level. The state-of-the-art control method for such a multi-phase cyclo converter is derived from that of the standard cyclo converter and operates the converter with a rather high commutation frequency, which contradicts the goal of efficiency improvement. A proposal in order to reduce the commutation frequency has been presented, but this includes other drawbacks as larger total harmonic distortions.
Project goals
Goal of this project is to improve the control of this converter concept to operate the converter with a small number of commutations in order to minimize losses as well as to consider other optimization targets as the total harmonic distortion (THD) and the converter voltage utilization.
Methodological approach is the employment of space vector modulation which so far has not been applied to such converters, likely because of the large number of states to be handled (with N = 27 phases, N³ = 19683 states result), which are furthermore varying in time, and also because the commutations cannot be triggered arbitrarily with externally commutated converters. The implementation of a Direct Current Control in a rotor-fixed reference frame by means of Model Predictive Control (MPC) is a promising way to solve this complex task. Model Predictive Control will select the best switching state with help of an objective function that considers the control error, the rate of change of the predicted control variable (which is approximately proportional to THD) and the commutation voltage. In that way, the switching losses are expected to be reduced by about a factor of two.
References
[1] | M. Leuer, A. Rüting, J. Böcker |
[2] | M. Leuer, J. Böcker |
[3] | M. Leuer, J. Böcker |
[4] | M. Leuer, J. Böcker |
[5] | M. Leuer, M. Lönneker, J. Böcker |
[6] | M. Leuer, J. Böcker, M. Lönneker Model Predictive Control Strategy for Multi-Phase Thyristor Matrix Converters - Advantages, Problems and Solutions 18th European Conference on Power Electronics and Applications (EPE 2016), Karlsruhe, Germany, 2016 |
Contact:
Dr.-Ing. Oliver Wallscheid

Leistungselektronik und Elektrische Antriebstechnik (LEA)
Oberingenieur - Mitarbeiter - Leitung Fachgruppe Elektrische Antriebstechnik & Intelligente Energiesysteme
Terminvereinbarung
33098 Paderborn
Liste im Research Information System öffnen
2023
S. Peitz, J. Stenner, V. Chidananda, O. Wallscheid, S.L. Brunton, K. Taira, in: arXiv:2301.10737, 2023
2022
N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: Proc. 37th IEEE Applied Power Electronics Conference (APEC), IEEE, 2022
A. Brosch, O. Wallscheid, J. Böcker, IEEE Transactions on Power Electronics (2022)
A. Brosch, O. Wallscheid, J. Böcker, IEEE Transactions on Power Electronics (2022)
A. Brosch, J. Rauhaus, O. Wallscheid, J. Böcker, D. Zimmer, IEEE Open Journal of Industry Applications (2022)
J. Lange, D. Schmies, K.S.C. Stille, J. Böcker, O. Wallscheid, in: EPE'22 ECCE Europe, IEEE, 2022
M. Stender, M. Becker, O. Wallscheid, J. Böcker, in: 48th Annual Conference of the Industrial Electronics Society (IECON), 2022
N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: 2022 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2022
N. Förster, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2022, pp. 1-10
B. Haucke-Korber, M. Schenke, O. Wallscheid, in: IKMT 2022; 13. GMM/ETG-Symposium, 2022, pp. 1-6
W. Kirchgässner, D. Wöckinger, O. Wallscheid, G. Bramerdorfer, J. Böcker, in: IKMT 2022; 13. GMM/ETG-Symposium, 2022, pp. 1-6
W. Kirchgässner, O. Wallscheid, J. Böcker, Engineering Applications of Artificial Intelligence (2022), 117, 105537
W. Kirchgässner, O. Wallscheid, J. Böcker, in: 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia), IEEE, 2022
2021
A. Brosch, O. Wallscheid, J. Böcker, IEEE Open Journal of Industry Applications (2021), 2, pp. 47–63
E.G. Gedlu, O. Wallscheid, J. Böcker, in: 2021 IEEE International Electric Machines & Drives Conference (IEMDC), 2021, pp. 1–8
G. Book, A. Traue, P. Balakrishna, A. Brosch, M. Schenke, S. Hanke, W. Kirchgässner, O. Wallscheid, IEEE Open Journal of Power Electronics (2021), pp. 187-201
D. Weber, S. Heid, H. Bode, J. Lange, E. Hüllermeier, O. Wallscheid, IEEE Access (2021), 9, pp. 35654–35669
M. Stender, O. Wallscheid, J. Böcker, IEEE Transactions on Power Electronics (2021), 36(11), pp. 13261-13274
M. Stender, O. Wallscheid, J. Böcker, in: 2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC), IEEE, 2021
M. Stender, O. Wallscheid, J. Böcker, in: IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, IEEE, 2021
M. Stender, O. Wallscheid, J. Böcker, in: 2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC), IEEE, 2021
S. Hanke, O. Wallscheid, J. Böcker, IET Digital Library, 2021
O. Wallscheid, IEEE Open Journal of Industry Applications (2021)
W. Kirchgässner, O. Wallscheid, J. Böcker, IEEE Transactions on Energy Conversion (2021), 36(3), pp. 2059 - 2067
P. Balakrishna, G. Book, W. Kirchgässner, M. Schenke, A. Traue, O. Wallscheid, Journal of Open Source Software (2021), 2498
M. Schenke, O. Wallscheid, IEEE Open Journal of the Industrial Electronics Society (2021), pp. 388-400
M. Schenke, O. Wallscheid, arXiv preprint arXiv:2105.08990 (2021)
A. Brosch, O. Wallscheid, J. Böcker, IEEE Transactions on Industrial Informatics (2021)
W. Kirchgässner, O. Wallscheid, J. Böcker, in: arXiv preprint arXiv:2103.16323, 2021
2020
A. Traue, G. Book, W. Kirchgässner, O. Wallscheid, IEEE Transactions on Neural Networks and Learning Systems (2020), pp. 1-10
W. Kirchgässner, O. Wallscheid, J. Böcker, IEEE Transactions on Power Electronics (2020), 36(7), pp. 7480-7488
A. Brosch, S. Hanke, O. Wallscheid, J. Böcker, IEEE Transactions on Power Electronics (2020), pp. 2179-2190
K.S.C. Stille, D. Weber, J. Lange, T. Vogt, O. Wallscheid, J. Böcker, in: 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), IEEE, 2020
M. Stender, O. Wallscheid, J. Böcker, IEEE Transactions on Industrial Electronics (2020), 68(9), pp. 8646-8656
M. Stender, O. Wallscheid, J. Böcker, in: 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), IEEE, 2020
S. Heid, D. Weber, H. Bode, E. Hüllermeier, O. Wallscheid, Journal of Open Source Software (2020), 5(54), pp. 2435
H. Bode, S. Heid, D. Weber, E. Hüllermeier, O. Wallscheid, arXiv preprint arXiv:2005.04869 (2020)
E.G. Gedlu, O. Wallscheid, J. Böcker, in: The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020), 2020, pp. 937–942
O. Wallscheid, E.F.B. Ngoumtsa, IEEE Transactions on Power Electronics (2020), 35(12), pp. 13563–13572
S. Hanke, O. Wallscheid, J. Böcker, arXiv preprint arXiv:2003.06268 (2020)
W. Kirchgässner, O. Wallscheid, J. Böcker, arXiv preprint arXiv:2001.06246 (2020)
M. Stender, O. Wallscheid, J. Böcker, 2020
2019
M. Schenke, W. Kirchgässner, O. Wallscheid, IEEE Transactions on Industrial Informatics (2019), pp. 4650-4658
W. Kirchgässner, O. Wallscheid, J. Böcker, in: 2019 IEEE 28th International Symposium on Industrial Electronics (ISIE), 2019
W. Kirchgässner, O. Wallscheid, J. Böcker, in: 2019 IEEE International Electric Machines & Drives Conference (IEMDC), 2019
M. Stender, O. Wallscheid, J. Böcker, in: 2019 IEEE 28th International Symposium on Industrial Electronics (ISIE), IEEE, 2019
S. Hanke, S. Peitz, O. Wallscheid, J. Böcker, M. Dellnitz, in: 2019 IEEE International Symposium on Predictive Control of Electrical Drives and Power Electronics (PRECEDE), 2019, pp. 1–6
O. Wallscheid, M.S. Shafiq, J. Böcker, in: 2019 IEEE 28th International Symposium on Industrial Electronics (ISIE), 2019, pp. 402–407
O. Wallscheid, E.F.B. Ngoumtsa, J. Böcker, in: 2019 IEEE International Electric Machines & Drives Conference (IEMDC), 2019, pp. 2188–2195
S. Hanke, O. Wallscheid, J. Böcker, in: 2019 IEEE International Electric Machines & Drives Conference (IEMDC), 2019, pp. 2210–2216
D.E.E. Gaona, O. Wallscheid, J. Böcker, IEEE Transactions on Industrial Electronics (2019)
2018
D. Weber, K.S.C. Stille, O. Wallscheid, J. Böcker, in: 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), IEEE, 2018
D. Weber, M.I. Rafsan Jani, M. Grabo, O. Wallscheid, T. Klaus, S. Krauter, J. Böcker, in: World Conference on Photovoltaic Energy Conversion (WCPEC-7), 45th IEEE PVSC, 28th PVSEC, 34th EU PVSEC., 2018
O. Wallscheid, M. Schenke, J. Böcker, in: 2018 21st International Conference on Electrical Machines and Systems (ICEMS), 2018, pp. 1181–1186
O. Wallscheid, M. Schenke, J. Böcker, in: 2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC), 2018, pp. 793–799
S. Hanke, S. Peitz, O. Wallscheid, S. Klus, J. Böcker, M. Dellnitz, arXiv preprint arXiv:1804.00854 (2018)
2017
O. Wallscheid, W. Kirchgässner, J. Böcker, in: 2017 International Joint Conference on Neural Networks (IJCNN), 2017
D. Gaona, O. Wallscheid, J. Böcker, in: 2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS), 2017, pp. 1–126
D. Gaona, O. Wallscheid, J. Böcker, in: 2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS), 2017, pp. 599–606
S. Hanke, O. Wallscheid, J. Böcker, in: 2017 IEEE International Symposium on Predictive Control of Electrical Drives and Power Electronics (PRECEDE), 2017, pp. 101–106
O. Wallscheid, A. Specht, J. Böcker, IEEE Transactions on Industrial Electronics (2017), 64(5), pp. 3921–3929
D. Gaona, O. Wallscheid, J. Böcker, in: 2017 IEEE Southern Power Electronics Conference (SPEC), 2017, pp. 1–6
O. Wallscheid, J. Böcker, in: 2017 IEEE International Electric Machines and Drives Conference (IEMDC), 2017, pp. 1–8
O. Wallscheid, J. Böcker, in: 2017 IEEE International Symposium on Predictive Control of Electrical Drives and Power Electronics (PRECEDE), 2017, pp. 31–36
T. Vogt, D. Weber, O. Wallscheid, J. Böcker, in: International Joint Conference on Neural Networks (IJCNN), 2017, pp. 3228–3235
O. Wallscheid, Shaker Verlag, 2017
2016
O. Wallscheid, T. Huber, W. Peters, J. Böcker, EPE Journal (2016)(25), pp. 1–10
O. Wallscheid, U. Ammann, J. Böcker, in: PCIM Europe 2016; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2016, pp. 1–8
2015
O. Wallscheid, J. Böcker, IEEE Transactions on Energy Conversion (2015), 31(1), pp. 354–365
O. Wallscheid, M. Meyer, J. Böcker, in: 2015 IEEE 11th International Conference on Power Electronics and Drive Systems, 2015, pp. 981–985
O. Wallscheid, J. Böcker, in: European Conference on Power Electronics and Applications (EPE), 2015
O. Wallscheid, J. Böcker, in: IEEE International Electric Machines and Drives Conference (IEMDC), 2015
W. Peters, O. Wallscheid, J. Böcker, in: European Conference on Power Electronics and Applications (EPE), 2015
2014
O. Wallscheid, T. Huber, W. Peters, J. Böcker, in: IECON 2014-40th Annual Conference of the IEEE Industrial Electronics Society, 2014, pp. 811–818
A. Specht, O. Wallscheid, J. Böcker, in: 2014 International Power Electronics Conference (IPEC-Hiroshima 2014-ECCE ASIA), 2014, pp. 1501–1507
2013
O. Wallscheid, J. Böcker, in: ETG-Fachbericht-Internationaler ETG-Kongress 2013–Energieversorgung auf dem Weg nach 2050, 2013
A. Specht, S. Ober-Blöbaum, O. Wallscheid, C. Romaus, J. Böcker, in: Electric Machines & Drives Conference (IEMDC), 2013 IEEE International, 2013, pp. 1411–1417
2012
W. Peters, O. Wallscheid, J. Böcker, in: IECON 2012-38th Annual Conference on IEEE Industrial Electronics Society, 2012, pp. 2877–2882
2011
O. Wallscheid, W. Peters, J. Böcker, Aktuelle Technik (2011), 5(1), pp. 30–33
W. Peters, O. Wallscheid, J. Böcker, in: IECON 2011-37th Annual Conference of the IEEE Industrial Electronics Society, 2011, pp. 534–538