永磁同步电机脉振高频电压注入转子位置检测  

Rotor Position Detection of Permanent Magnet Synchronous Motor Based on Pulsating High Frequency Voltage Injection

作　　者：柴俊[1] 江延宇 彭艳[3] CHAI Jun;JIANG Ydn-yu;PENG Yan(Wuxi Machinery and Electron Branch of Jiangsu Union Technical Institute,Jiangsu 214028,China;School of Electrical and Information,Jiangsu University of Science and Technology,Zhenjiang 212003,China;School of Mechatronic Engineering and Automation,Shanghai University,Shanghai 200072,China)

机构地区：[1]江苏联合职业技术学院无锡机电分院,江苏无锡214028 [2]江苏科技大学电子信息学院,江苏镇江212003 [3]上海大学机电工程与自动化学院,上海200072

出　　处：《控制工程》2020年第1期143-147,共5页Control Engineering of China

基　　金：国家自然科学基金项目(61403245,91648119);上海市科委能力建设资助项目(14500500400)

摘　　要：永磁同步电机的转子位置检测精度直接决定了电机能否平滑起动,为提高转子位置检测精度,提出了基于脉振高频电压注入的表贴式永磁同步电机转子位置检测方法。向永磁同步电机定子绕组中注入脉振高频电压信号,通过电机d、q轴磁路饱和程度的差异,实现永磁同步电机转子初始位置的检测。实验结果表明提出方法的转子位置检测精度高,适用于永磁同步电机的无传感器起动及低转速稳态运行。The rotor position detection accuracy of permanent magnet synchronous motor directly determines whether the motor can start smoothly. In order to improve the accuracy of rotor position detection, a rotor position detection method for permanent magnet synchronous motor based on pulsating high frequency voltage injection is proposed. The high frequency voltage signal is injected into the stator windings of permanent magnet synchronous motor, and the rotor initial position is detected by the saturation degree of the magnetic circuit of the d、q axes of the motor. Experimental results show that the proposed method has high rotor position detection accuracy and it is suitable for sensorless start and low speed state operation of permanent magnet synchronous motor.

关 键 词：永磁同步电机 脉振高频电压 转子位置 磁路饱和 

分 类 号：TM306[电气工程—电机]