开关磁阻电机特征点交截的转子位置估计方法  

Sensorless Strategy of Switched Reluctance Motor Based on the Eigenvalue Detection Method

作　　者：孙刚[1] 张磊[1] 

机构地区：[1]南京信息职业技术学院,江苏南京210023

出　　处：《电机与控制应用》2016年第6期13-16,共4页Electric machines & control application

基　　金：江苏省自然科学基金项目"开关磁阻电机全速范围无位置传感器及其容错机理研究"(BK20151574);江苏省"六大人才高等"高层次人才选拔对象C类资助项目"面向微网应用的T型三相三电平PWM变换器研究"(2014-ZNDW-003)

摘　　要：针对传统的脉冲注入法需要脉冲电流阀值,而且只能实现单拍工作的缺点,在传统的脉冲注入法基础上,提出一种特征点交截的转子位置估计方法。根据电感曲线、脉冲电流峰值、转子位置三者之间关系,对开关磁阻电机各相同时注入高频脉冲,提取相脉冲电流峰值的包络线。因为包络线的交点对应转子位置信号的变化,所以只要通过简单的逻辑比较,就可以间接获得转子的位置。通过仿真和试验,验证了该方法的可行性。The method of injected high frequency pulse for switched reluctance motor was ordinary for sensorless operation of switched reluctance machine. However, the reference current was required, and no double rhythm operating characteristic. The method of eigenvalve detection was proposed , Based on the analysis of the relationship among phase inductance and the rotor position and flux linkage, The high frequency pulse was injected for three phase simultaneity, the envelope of the three pulse current were obtained by low-pass filter. The rotor position were obtained by the cross dot of the three phase current envelope. Finally, the experimental and Simulation results has verified the validity of the method.

关 键 词：开关磁阻电机 无位置检测 特征点交截 脉冲注入 

分 类 号：TM352[电气工程—电机]