Sensorless Control of Permanent Magnet Synchronous Motor in Full Speed Range*

doi:10.23919/CJEE.2022.000018

Chinese Journal of Electrical Engineering ›› 2022, Vol. 8 ›› Issue (2): 97-107.doi: 10.23919/CJEE.2022.000018

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Sensorless Control of Permanent Magnet Synchronous Motor in Full Speed Range^*

Dingdou Wen, Wei Wang, Yang Zhang^*

School of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412008, China

Received:2021-07-23 Revised:2021-11-23 Accepted:2021-12-15 Online:2022-06-25 Published:2022-07-08
Contact: * E-mail: hut_zy@163.com
About author:Dingdou Wen received the B.S. degree in Automation from Nanjing Tech University, Nangjing, China, in 1993, the M.S. degree in Control Theory and Control Engineering from Central South University, Changsha, in 2007. He has been with Hunan University of Technology, he is currently a Professor of Automatic Control Engineering. His current research interests are permanent magnet synchronous motor speed control.
Wei Wang received his master's degree in Department of Electrical Engineering, Hunan University of Technology, In 2020, Hunan, China. His main research is power electronics and power transmission.
Yang Zhang received his B.S. degree in Applied Physics and his M.S. degree in Electrical Engineering from Hunan University of Technology, Zhuzhou, China. He received his Ph.D. degree in Electrical Engineering from Hunan University, Hunan, China, in 2017. He is currently an Assistant Professor in Hunan University of Technology. His current research interests include wind power generation system and impedance-source converters.
Supported by:
* National Natural Science Foundation of China (51907061) and Natural Science Foundation of Hunan Province (2018JJ2100, 2019JJ50119).

Abstract

Abstract: Aiming at resolving the limitation of the speed regulation range of sensorless control technology, a new composite sensorless control strategy is proposed to realize a control method for a permanent magnet synchronous motor (PMSM) in full speed range. In the medium- and high-speed range, the improved new sliding mode observer method is used to estimate the motor speed and rotor position information. In the zero and low speed range, in order to avoid the defects of the sliding mode method, the rotating high-frequency voltage signal injection method is used. When switching between low, medium, and high speed, the fuzzy control algorithm is adopted to achieve smooth transitions. The simulation experiment results show that the hybrid mode combining the sliding mode observer and rotating high-frequency voltage injection methods, can effectively reduce the jitter in the algorithm switching process, and realize the smooth control of a PMSM in full speed range.

Key words: PMSM, full speed range, rotating high-frequency voltage signal injection method, sliding mode observer method, fuzzy control

Dingdou Wen, Wei Wang, Yang Zhang. Sensorless Control of Permanent Magnet Synchronous Motor in Full Speed Range^*[J]. Chinese Journal of Electrical Engineering, 2022, 8(2): 97-107.

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Sensorless Control of Permanent Magnet Synchronous Motor in Full Speed Range^*

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