TY - GEN
T1 - Parallel Commutation Error Compensation Strategy for Sensorless Brushless DC Motor with Asymmetric Back-EMF
AU - Zhang, Haifeng
AU - Deng, Lirong
AU - Jin, Hao
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Precise commutation is a significant factor for im-proving the operational efficiency of the brushless DC motor. However, there exists residual error with the motor of three-phase asymmetric back electromotive force (TAEMF) under conventional commutation error correction methods. For solving this problem, a three-parallel channel (TPC) error compensation strategy is proposed. First, the source of error caused by the TAEMF is analyzed. Then, the feedback quantity related to the commutation error is constructed, which is based on the corre-lation between the virtual neutral point relative to the DC-link voltage and the ideal commutation point. Finally, the TPC error correction control system is established by using the feedback quantity, which corrects the error of three commutation signals in three channels. Compared with the conventional methods, the proposed strategy not only compensates the residual error caused by the TAEMF, but also has the advantage of a much simpler circuit configuration. The validity of the proposed strategy has been verified by experimental results.
AB - Precise commutation is a significant factor for im-proving the operational efficiency of the brushless DC motor. However, there exists residual error with the motor of three-phase asymmetric back electromotive force (TAEMF) under conventional commutation error correction methods. For solving this problem, a three-parallel channel (TPC) error compensation strategy is proposed. First, the source of error caused by the TAEMF is analyzed. Then, the feedback quantity related to the commutation error is constructed, which is based on the corre-lation between the virtual neutral point relative to the DC-link voltage and the ideal commutation point. Finally, the TPC error correction control system is established by using the feedback quantity, which corrects the error of three commutation signals in three channels. Compared with the conventional methods, the proposed strategy not only compensates the residual error caused by the TAEMF, but also has the advantage of a much simpler circuit configuration. The validity of the proposed strategy has been verified by experimental results.
KW - Asymmetric back-EMF
KW - brushless DC motor
KW - closed-loop compensation
KW - commutation error
UR - https://www.scopus.com/pages/publications/85129498780
U2 - 10.1109/ISAS55863.2022.9757326
DO - 10.1109/ISAS55863.2022.9757326
M3 - 会议稿件
AN - SCOPUS:85129498780
T3 - 2022 5th International Symposium on Autonomous Systems, ISAS 2022
BT - 2022 5th International Symposium on Autonomous Systems, ISAS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th International Symposium on Autonomous Systems, ISAS 2022
Y2 - 8 April 2022 through 10 April 2022
ER -