TY - GEN
T1 - Compensation method of DC-link Current Integral Deviation for Sensorless Control of Three-phase BLDC Motor
AU - Wu, Haoting
AU - Zhang, Haifeng
AU - Cui, Peiling
AU - Zhao, Xiuqi
AU - Zhang, Di
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Aiming at the problem of sensorless commutation deviation of brushless DC motors with three-phase non-ideal back EMF, a new sensorless control method based on DC-link current is proposed to achieve optimal commutation and reduce the system Power consumption. Detection errors and calculation errors caused by non-ideal conditions and parameter changes will seriously affect motor commutation, which will increase motor losses and reduce motor efficiency. The relationship between the commutation point displacement and the DC-link current is analyzed, and the DC-link current deviation integral method is proposed. The initial commutation error can be calculated in a conduction interval, and then online commutation correction can be used to compensate the remaining error in the subsequent conduction interval. Experimental results show that this method can achieve high-precision deviation correction and optimal commutation at each commutation point when the three-phase reverse electromotive force is not ideal.
AB - Aiming at the problem of sensorless commutation deviation of brushless DC motors with three-phase non-ideal back EMF, a new sensorless control method based on DC-link current is proposed to achieve optimal commutation and reduce the system Power consumption. Detection errors and calculation errors caused by non-ideal conditions and parameter changes will seriously affect motor commutation, which will increase motor losses and reduce motor efficiency. The relationship between the commutation point displacement and the DC-link current is analyzed, and the DC-link current deviation integral method is proposed. The initial commutation error can be calculated in a conduction interval, and then online commutation correction can be used to compensate the remaining error in the subsequent conduction interval. Experimental results show that this method can achieve high-precision deviation correction and optimal commutation at each commutation point when the three-phase reverse electromotive force is not ideal.
KW - Brushless direct-current (BLDC) motor
KW - commutation deviation correction
KW - magnetically suspended control moment gyro (MSCMG)
KW - sensorless control
UR - https://www.scopus.com/pages/publications/85135610883
U2 - 10.1109/ICCCAS55266.2022.9824161
DO - 10.1109/ICCCAS55266.2022.9824161
M3 - 会议稿件
AN - SCOPUS:85135610883
T3 - 11th International Conference on Communications, Circuits and Systems, ICCCAS 2022
SP - 12
EP - 18
BT - 11th International Conference on Communications, Circuits and Systems, ICCCAS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th International Conference on Communications, Circuits and Systems, ICCCAS 2022
Y2 - 13 May 2022 through 15 May 2022
ER -