无刷直流电动机双闭环调速系统的转矩脉动抑制研究

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Abstract This paper mainly describes a torque ripple reduction strategy for the brushless DC motor double-loop speed control system.In the traditional double-loop speed control system,brushless DC motor has large torque ripple because of the non-ideal trapezoidal wave back EMF and the non-ideal square wave phase current.So this paper proposes a control method combining the phase current shaping with the new half-bridge PWM mode.The phase current shaping method using line EMF constant can mitigate the torque ripple caused by the non-ideal trapezoidal wave back EMF.The new half-bridge PWM mode,obtained by analyzing the phase current commutation process,will decrease the commutation torque ripple due to the non-ideal square wave phase current.Finally,simulations with Matlab and experiment results with DSP,operating in four-quadrant operation,are presented to verify the feasibility and effectiveness of the proposed strategy.

Key words： Brushless DC Motor (BLDCM) double-loop speed control system torque ripple reduction phase current shaping four-quadrant operation

Received: 01 January 2014 Published: 08 September 2015

PACS:

TM359

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	Li Zhenguo
	Zhou Shenghai
	Wang Jianghao
	Fang Yiming

Cite this article:

Li Zhenguo,Zhou Shenghai,Wang Jianghao等. The Research on the Brushless DC Motor Double-loop Speed Control System for Torque Ripple Reduction[J]. Transactions of China Electrotechnical Society, 2015, 30(15): 156-163.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I15/156

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