摘要
针对方波无刷直流电动机，讨论根据激磁电势波形确定电机换向时序的“端电压法”无传感器控制方法，并详细阐述其特殊的起动过程和双向运行技术。通常弱磁控制适用于正弦电机；对方波电机，文中提出了一种新型的用变压器电势抵消激磁电势而实现的等效弱磁控制方法，并作了理论分析与实验验证。
According to square wave brushless dc motor,the thesis discusses the“terminal voltage method” sensorless contorl to define commutation sequence in the light of execting electric potential wave,and explouds its special starting process and two-way operation technique.In general,weakening magnet field control is fit for sine motor.For square wave motor,the thesis set forth equivalent weakening magnet field control way by use of transformer electric potential to offseting verify have been made.
出处
《微电机》
北大核心
1997年第4期19-23,39,共6页
Micromotors
关键词
无刷
直流电动机
位置传感器
激磁
电势
brushless dc motor,position sensor,excit,electric potential,weakening magnet field contorl
