电流增量预测控制策略参数稳定域拓展

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Abstract In order to ensure high dynamic performance of the whole system,high performance permanent magnet synchronous motor servo applications often require fast response speed of inner current loop. Incremental predictive control strategy of current for permanent magnet synchronous motor is promising to achieve fast dynamic response. However, it is sensitive to the accuracy of motor inductance. If the parameter of motor inductance mismatches seriously, stability of the system is difficult to be guaranteed. This paper proposes a method to expend the stability region of motor inductance for the incremental predictive control strategy. By using more motor status information, the order of the equation which is employed to calculate the reference voltage is increased. Thus, the aim of expending the suitability region of motor inductance is realized. This proposed method has no special requirements on hardware resources or computing speed of the processor. The stability region of motor inductance can be significantly broadened at the cost of a small increase in computation adopting the proposed method. Simulation and experimental results verify the effectiveness and practicality of the proposed method.

Key words： Permanent magnet synchronous motor (PMSM) servo system incremental predictive control strategy parameter stability region

Received: 10 November 2012 Published: 17 June 2014

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TM315

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	Articles by authors
	Wang Weihua
	Xiao Xi
	Liu Huan
	Sun Kai
	Wu Heping

Cite this article:

Wang Weihua,Xiao Xi,Liu Huan等. Expanding Parameter Stability Region for Incremental Predictive Control Strategy of Current[J]. Transactions of China Electrotechnical Society, 2014, 29(3): 50-56.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I3/50

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