无刷直流电动机换相过程分析

Analysis of process in commutating phase of brushless DC Motor

介绍了无刷直流电动机的数学模型,针对该电机定子的换相过程、对电流的流向及电路方程进行了描述,并推导出换流时间与转矩脉动的函数关系,最后用PSPICE软件进行了仿真。

BLDC’S model is introduced in detail. In the process of commutating phase, the current’s direction and circuit function areintroduced, and function between commutating time and torque ripple is argued. Circuit is simulated by PSPICE, which fits fact.