Decoupling Analysis of Permanent Magnet Synchronous Motor Current Controller by Dynamic Relative Gain Array

被引：0
|
作者：
An Z. [1 ]
Wang C. [1 ]
Gou L. [1 ]
机构：
[1] School of Electrical Engineering, Beijing Jiaotong University, Beijing
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷 / 06期
关键词：
Current control; Decoupling; Dynamic relative gain array (DRGA); Transfer matrix;
D O I：
10.19595/j.cnki.1000-6753.tces.180541
中图分类号：
学科分类号：
摘要：
The electrical system of a Permanent Magnet Synchronous Motor (PMSM) can be expressed as a dual-input-dual-output (DIDO) system with cross-coupling by dq transformation. Some current controllers, including direct compensation decoupling controller, matrix diagonalization decoupling controller and state feedback decoupling controller, have been proposed to decouple the cross-coupling term which has a serious impact on control performance. However, there is no uniform and intuitive way to compare the decoupling performance of different controllers. As a measure of interactions for multivariable, dynamic relative gain array (DRGA) is introduced to analyze the current decoupling performance of PMSM with different controllers in this paper. The simulation and experimental results show that the proposed method can effectively analyze the decoupling performance. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：1161 / 1169
页数：8
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