TY - GEN
T1 - Rotor position estimation of PMSM using square-wave voltage injection with asymmetric space vector modulation
AU - Zhang, Hang
AU - Liu, Weiguo
AU - Chen, Zhe
AU - Luo, Guangzhao
AU - Liu, Jianxing
AU - Zhao, Dongdong
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5/17
Y1 - 2017/5/17
N2 - On account of the low switching frequency restriction and harsh conditions of rail transit permanent magnet synchronous motor (PMSM) drive system, the sensorless control for such machine is challenging. In this work, a novel PWM control scheme, originating from the asymmetric space vector modulation (ASVM), was proposed for a square-wave voltage injection method based sensorless control under low switching frequency. The improved method makes comparisons between carrier and modulation-wave in the 1/4 and 3/4-point of one carrier period. As a result, the position signal can be estimated without low-pass filters (LPF) and time delays, and the total harmonics distortion (THD) of output current can be reduced dramatically. In addition, the distortion extent of induced high frequency (HF) current reduces as well, and the estimated position precision was improved. The experimental results proved the effectiveness and accuracy of the new method.
AB - On account of the low switching frequency restriction and harsh conditions of rail transit permanent magnet synchronous motor (PMSM) drive system, the sensorless control for such machine is challenging. In this work, a novel PWM control scheme, originating from the asymmetric space vector modulation (ASVM), was proposed for a square-wave voltage injection method based sensorless control under low switching frequency. The improved method makes comparisons between carrier and modulation-wave in the 1/4 and 3/4-point of one carrier period. As a result, the position signal can be estimated without low-pass filters (LPF) and time delays, and the total harmonics distortion (THD) of output current can be reduced dramatically. In addition, the distortion extent of induced high frequency (HF) current reduces as well, and the estimated position precision was improved. The experimental results proved the effectiveness and accuracy of the new method.
KW - ASVM
KW - PMSM
KW - Rotor position estimation
KW - Sensorless control
KW - Square-wave voltage injection
UR - https://www.scopus.com/pages/publications/85020035236
U2 - 10.1109/APEC.2017.7931084
DO - 10.1109/APEC.2017.7931084
M3 - 会议稿件
AN - SCOPUS:85020035236
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 2723
EP - 2729
BT - 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Y2 - 26 March 2017 through 30 March 2017
ER -