Abstract：When the flux-intensifying permanent magnet synchronous motor (FI-PMSM) is under low speed sensorless control, the secondary saliency harmonics will cause the oscillation of the observed rotor position. To solve the problem, this paper proposes a new sensorless control method based on the adaptive notch filter (ANF) online decoupling. Also, the oscillation mechanism of the observed rotor position in the traditional high frequency injection and the effect of multiple saliency coupling on high frequency injection are analyzed. Then, with the construction of ANF and the decoupling of the specific harmonics, the low-speed operating performance of the FI-PMSM sensorless control drive system can be effectively improved. Finally, the new sensorless vector control system is established, and the experimental results verify the feasibility and effectiveness of the proposed control strategy.
阙鸿杰, 全力, 张丽, 徐磊, 朱孝勇. 基于自适应滤波器在线解耦的磁场增强型永磁电机无位置传感器控制[J]. 电工技术学报, 2022, 37(2): 344-354.
Que Hongjie, Quan Li, Zhang Li, Xu Lei, Zhu Xiaoyong. Sensorless Control of Flux-Intensifying Permanent Magnet Synchronous Motor Based on Adaptive Notch Filter Online Decoupling. Transactions of China Electrotechnical Society, 2022, 37(2): 344-354.
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2022, Vol. 37 
