TY - GEN
T1 - Limitations of dq-Transformation for Modeling Healthy and Faulty Modes of Multiphase Electric Drives
AU - Bolvashenkov, Igor
AU - Kammermann, Jorg
AU - Herzog, Hans Georg
AU - Brazhnikov, Andrey V.
AU - Panteleev, Vasilii I.
AU - Dovzhenko, Nikolay N.
AU - Sharipov, Dalerdzhon A.
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/10/27
Y1 - 2020/10/27
N2 - At present, the most widely used methods for modeling electromagnetic processes occurring in multiphase inverter-fed AC electric drives (MACD) are methods based on the use of dq-transformation. The authors of this paper analyzed the errors of this method in relation to the steady-state failure-free and failure modes of operation of the MACD. This paper proves that, in the indicated operation modes with the overwhelming majority of the values of the MACD phase number, the use of dq-transformation causes the loss of a certain share of information about phase voltages and currents, electromagnetic torque of the AC motor, and current at the input circuit of the frequency converter. This is due to the fact that the application of the basic operations of dq-transformation leads to mutual compensation of some harmonic components of phase voltages (and, therefore, phase currents).
AB - At present, the most widely used methods for modeling electromagnetic processes occurring in multiphase inverter-fed AC electric drives (MACD) are methods based on the use of dq-transformation. The authors of this paper analyzed the errors of this method in relation to the steady-state failure-free and failure modes of operation of the MACD. This paper proves that, in the indicated operation modes with the overwhelming majority of the values of the MACD phase number, the use of dq-transformation causes the loss of a certain share of information about phase voltages and currents, electromagnetic torque of the AC motor, and current at the input circuit of the frequency converter. This is due to the fact that the application of the basic operations of dq-transformation leads to mutual compensation of some harmonic components of phase voltages (and, therefore, phase currents).
KW - dq-transformation
KW - healthy and faulty operating modes
KW - modeling
KW - multiphase electric drives
UR - http://www.scopus.com/inward/record.url?scp=85098857505&partnerID=8YFLogxK
U2 - 10.1109/ICOECS50468.2020.9278493
DO - 10.1109/ICOECS50468.2020.9278493
M3 - Conference contribution
AN - SCOPUS:85098857505
T3 - Proceedings - ICOECS 2020: 2020 International Conference on Electrotechnical Complexes and Systems
BT - Proceedings - ICOECS 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 International Conference on Electrotechnical Complexes and Systems, ICOECS 2020
Y2 - 27 October 2020 through 30 October 2020
ER -
