摘要
本文提出了一种新型的12/8结构开关磁阻电机的转子位置检测方法。该方法将检测线圈绕组与电机主绕组同时绕制于电机定子齿上,检测线圈的结构可有效抑制主绕组工作产生的感应电势。本文亦介绍了该结构检测线圈的参数设计原则。通过注入高频信号,电机的转子位置信号可通过处理采样电阻压降获得。由于检测线圈绕组与主绕组相互独立,因此高频信号无论转速高低均可注入,使得该方法的转速应用范围较宽。最后,本文针对一台12/8开关磁阻电机进行了仿真与实验,验证了该方法的可行性。
A new indirect rotor position estimation method for 12/8 switched reluctance motor（SRM） is presented in this paper. In this method, searching coils are wounded on stator teeth together with main coils. The structure of searching coils is able to reduce the induced voltages caused by main coils. Parameter design of it is also discussed. By applying high frequency voltage to searching coils, the rotor position can be derived from induced sample voltage signals. Searching coils are isolated from main coils, thus high frequency signal can be injected from standstill to high speed. Therefore, the proposed method can operate in a wide speed range. The method is implemented on a 12/8 SRM. Simulation and experimental results demonstrate the validity of this method.
出处
《电工技术学报》
EI
CSCD
北大核心
2015年第14期41-50,共10页
Transactions of China Electrotechnical Society
基金
Supported by the National Natural Science Foundation of China(51277094)
关键词
转子位置检测
开关磁阻电机
检测线圈
高频信号注入
Rotor position estimation
switched reluctance motor
searching coil
high frequency injection
