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

doi:10.19595/j.cnki.1000-6753.tces.180541

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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.

Key words： Current control decoupling transfer matrix dynamic relative gain array (DRGA)

Received: 08 April 2018 Published: 29 March 2019

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TM315

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	An Zhikai
	Wang Chenchen
	Gou Lifeng

Cite this article:

An Zhikai,Wang Chenchen,Gou Lifeng. Decoupling Analysis of Permanent Magnet Synchronous Motor Current Controller by Dynamic Relative Gain Array[J]. Transactions of China Electrotechnical Society, 2019, 34(6): 1161-1169.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180541 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I6/1161

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