直流电机转速与电流换向脉动频率关系新表达  

A New Expression Between the Rotate Speed and Current Commutating Pulsant Frequency of DC Motor

作　　者：刘曼兰[1] 张千帆[1] 崔淑梅[1] 

机构地区：[1]哈尔滨工业大学,哈尔滨150001

出　　处：《微电机》2006年第5期10-12,共3页Micromotors

摘　　要：通过对直流电机换向机理的分析,仅利用直流电机的换向片数和电刷对数两个参数推导出了直流电机转速与换向脉动频率之间的定量关系,并对所有型号的直流电机给出了统一的表达式；为间接测量直流电机转速提供了理论依据。The quantitative relationship between the frequency of current fluctuating caused by commutation and the rotating speed of DC motors was found according to the number of commutator and brush after deeply analyzed the commutating mechanism of DC motors in this paper. What＇s more, the uniform expressions for all types of DC motors have been found and these provide a new theoretic base for measuring the rotating speed indirectly.

关 键 词：直流电机 换向机理 换向脉动频率 电机转速 

分 类 号：TM331[电气工程—电机]