Abstract：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.
安志凯, 王琛琛, 苟立峰. 基于动态相对增益阵列的永磁同步电机电流控制器解耦分析[J]. 电工技术学报, 2019, 34(6): 1161-1169.
An Zhikai, Wang Chenchen, Gou Lifeng. Decoupling Analysis of Permanent Magnet Synchronous Motor Current Controller by Dynamic Relative Gain Array. Transactions of China Electrotechnical Society, 2019, 34(6): 1161-1169.
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