Analysis and Design of Current Regulator Stability During High-speed Operation of Permanent Magnetic Synchronous Motor

被引：0
|
作者：
Xia C. [1 ]
Rahman S.U. [1 ]
Liu Y. [1 ]
机构：
[1] School of Electrical and Information Engineering, Tianjin University, Nankai District, Tianjin
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2020年 / 40卷
关键词：
Decouple control; Passivity theory; Permanent magnet synchronous motor (PMSM); PI regulator; Two-degree-of-freedom PI;
D O I：
10.13334/j.0258-8013.pcsee.191394
中图分类号：
学科分类号：
摘要：
In the permanent magnet synchronous motor control system, the current loop oscillates when the motor is running at high speed. The influence of the design bandwidth of the traditional PI (proportional integra) controller on the stability was firstly analyzed. And then, when there were a parameter deviation, the change of the response characteristics of traditional current loop decoupling design was analyzed by passive theory, and the conditions for maintaining the stability of the system was given. On the base of these, two methods of passiveness and root locus analysis were applied to prove that the design of two degree of freedom PI regulator can significantly improve the stability and performance of current loop when the motor is running at high speed, and improve the robustness of decoupling control to parameter deviation. Finally, the correctness of the above conclusions was proved by simulation and experimental results. © 2020 Chin. Soc. for Elec. Eng.
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页码：303 / 312
页数：9
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