TY - GEN
T1 - Voltage-Current Hybrid Model Based Extended Flux Observer with Multiple SOGIs for Sensorless IPMSM Drives
AU - Feng, Zhibin
AU - Zhang, Guoqiang
AU - Wang, Siqi
AU - Wang, Gaolin
AU - Xu, DIanguo
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/10/13
Y1 - 2021/10/13
N2 - To achieve high-performance sensorless control of interior permanent magnet synchronous motor (IPMSM) drives, this paper proposes an extended flux observer by using the current model to modify the voltage model. The current model is set to correct the voltage model through the PI regulator to form closed-loop control. The proposed closed-loop control method effectively suppresses the DC offsets and integral saturation in the voltage model, which greatly improves the stability and accuracy of sensorless control. On this basis, for the 5th and 7th harmonics caused by the inverter nonlinearity, this paper proposes a filter network composed of multiple second-order generalized integrators (Multiple SOGIs), and uses the integral characteristic of the second-order generalized integrator to replace the pure integral of the voltage model. Multiple SOGIs greatly filter out the high-order harmonics in the back electromotive force (EMF) and improve the accuracy of sensorless control. The effectiveness of the proposed scheme is verified on a 2.2kW IPMSM drive platform.
AB - To achieve high-performance sensorless control of interior permanent magnet synchronous motor (IPMSM) drives, this paper proposes an extended flux observer by using the current model to modify the voltage model. The current model is set to correct the voltage model through the PI regulator to form closed-loop control. The proposed closed-loop control method effectively suppresses the DC offsets and integral saturation in the voltage model, which greatly improves the stability and accuracy of sensorless control. On this basis, for the 5th and 7th harmonics caused by the inverter nonlinearity, this paper proposes a filter network composed of multiple second-order generalized integrators (Multiple SOGIs), and uses the integral characteristic of the second-order generalized integrator to replace the pure integral of the voltage model. Multiple SOGIs greatly filter out the high-order harmonics in the back electromotive force (EMF) and improve the accuracy of sensorless control. The effectiveness of the proposed scheme is verified on a 2.2kW IPMSM drive platform.
KW - extended flux observer
KW - interior permanent magnet synchronous motor
KW - multiple second-order generalized integrators
KW - sensorless control
KW - voltage-current hybrid model
UR - https://www.scopus.com/pages/publications/85119506049
U2 - 10.1109/IECON48115.2021.9589389
DO - 10.1109/IECON48115.2021.9589389
M3 - 会议稿件
AN - SCOPUS:85119506049
T3 - IECON Proceedings (Industrial Electronics Conference)
BT - IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society
PB - IEEE Computer Society
T2 - 47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021
Y2 - 13 October 2021 through 16 October 2021
ER -