基于模糊动态代价函数的永磁同步电机有限控制集模型预测电流控制

doi:10.19595/j.cnki.1000-6753.tces.161297

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Abstract This paper proposes a finite-control-set model predictive current control for permanent magnet synchronous motor (PMSM) based on dynamic cost function using fuzzy method. The performance of current control is analyzed in different weighting factors of dq current and switching times in cost function. The current item in cost function was not optimized in traditional finite- control-set model predictive current control. Thus, the deviation of speed and its rate of change are used for adjusting weighting factors in cost function dynamically through fuzzy method. The domain of fuzzy control and its reasoning rule are built. The proposed method can improve the response of current, and optimize the switching frequency at the same time. The constraint between dynamic response and stability margin is improved. Both simulation and experiment verify the proposed method.

Key words： Permanent magnet synchronous motor model predictive control dynamic cost function fuzzy control

Received: 18 August 2016 Published: 30 August 2017

PACS:

TM341

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	Articles by authors
	Tu Wencong
	Luo Guangzhao
	Liu Weiguo

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Tu Wencong,Luo Guangzhao,Liu Weiguo. Finite-Control-Set Model Predictive Current Control for Permanent Magnet Synchronous Motor Based on Dynamic Cost Function Using Fuzzy Method[J]. Transactions of China Electrotechnical Society, 2017, 32(16): 89-97.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.161297 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I16/89

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