无刷直流电动机非换相转矩脉动抑制研究  

A Novel Technology to Eliminate Torque Ripple of Inactive Phase in BLDCM

作　　者：吴奎华[1] 韦鲲[1] 林平[1] 

机构地区：[1]浙江大学电气工程学院,杭州310027

出　　处：《微电机》2007年第12期44-47,共4页Micromotors

摘　　要：详细分析了现有的PWM调制方法在无刷直流电机的非换相期间引起非导通相续流,从而导致非换相转矩脉动;而利用PWM_ON_PWM调制方法时,发现它可以完全消除非换相转矩脉动。通过Matlab仿真试验,证明了该方法的正确性。The paper presents detailed study method of the diode freewheeling of the inactive phase caused by the conventional PWM modes when adopted in BLDCM （Brushless DC motor）, and result in the torque ripple of the inactive phase, the approach （PWM_ON_ PWM） is proposed. It can eliminate the torque ripple of the inactive phase. The Matlab simulation results are provided to demonstrate the advantage of the proposed method.

关 键 词：无刷直流电动机 PWM 非导通相续流 转矩脉动 

分 类 号：TM361[电气工程—电机]