基于参数辨识的PMSM电流环在线自适应控制方法

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Abstract In vector control system of PMSM, current controller performance will decline significantly because of changes in motor parameters, an on-line adaptive control of PMSM current-loop based on parameter identification is proposed. First stator resistance and permanent magnet flux linkage are identified using recursive least squares method with forgetting factor, and then d-q axis inductance are estimated using the same method base on the previous step, finally the PI parameters in real-time operating conditions could be obtained. Experimental results show that PI parameters can effectively adapt to change in working conditions and quickly achieve precise control of current.

Key words： PMSM vector control current-loop on-line parameter identification

Received: 09 August 2011 Published: 20 March 2014

PACS:

TM351

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	Articles by authors
	Yang Liyong
	Zhang Yunlong
	Chen Zhigang
	Li Zhengxi

Cite this article:

Yang Liyong,Zhang Yunlong,Chen Zhigang等. On-Line Adaptive Control of PMSM Current-Loop Based on Parameter Identification[J]. Transactions of China Electrotechnical Society, 2012, 27(3): 86-91.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I3/86

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