Torque ripple minimization of non-ideal magnet flux permanent magnet synchronous motors

被引：0
|
作者：
Guo H.-H. [1 ]
Cao R. [1 ]
Lin X.-X. [1 ]
Zhang W.-F. [1 ]
机构：
[1] College of Automation & College of Artificial Intelligence, Nanjing University of Posts and Telecommunications, Nanjing
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2022年 / 26卷 / 02期
关键词：
Field oriented control; Non-ideal magnet flux; Optimal harmonic current; Permanent magnet synchronous motors; Torque ripple minimization;
D O I：
10.15938/j.emc.2022.02.007
中图分类号：
学科分类号：
摘要：
A permanent magnet synchronous motor (PMSM) torque ripple suppression method considering harmonic flux phase is proposed to solve torque ripple in non-ideal sinusoidal rotor magnet flux PMSM drives. By deducing the torque model considering the harmonic magnet flux, the objective function satisfying both the torque ripple and the loss minimization was constructed, and the genetic algorithm was used to obtain the optimal harmonic current. Moreover, the proposed design used the torque waveform within an electric angle period as the optimization target, and expressed torque as a dense sequence instead of extracting the amplitude of harmonic torque, which not only avoids complicated formula derivation, but also improves the accuracy of optimization results more effectively. Simulation and experimental results show that the proposed method can precisely calculate the optimal harmonic current instruction under different operations and effectively suppress about 67% of the torque ripple. © 2022, Harbin University of Science and Technology Publication. All right reserved.
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页码：63 / 71
页数：8
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