永磁同步电机初始位置检测方法研究  

Research on Rotor Initial Position Detection Method for Permanent Magnet Synchronous Motor

作　　者：石征锦[1] 郭力源 朱小超 Shi Zheng-jin;Guo Li-yuan;Zhu Xiao-chao(Shenyang Ligong University,Liaoning Shenyang 110159;Suzhou Weichuang Electric Technology Co.,Ltd.,Jiangsu Suzhou 215000)

机构地区：[1]沈阳理工大学,辽宁沈阳110159 [2]苏州伟创电气科技股份有限公司,江苏苏州215000

出　　处：《内燃机与配件》2023年第12期71-73,共3页Internal Combustion Engine & Parts

摘　　要：永磁同步电机控制系统运行需要获取转子的初始位置,而装配于同步电机的增量式光电编码器“上电”无法精确获得转子的初始位置。故本文提出利用合适的电流矢量使转子在初始位置处小幅度微动,结合增量式光电编码器的AB信号精确检测PMSM的转子位置。仿真结果验证在辨识过程中转子微动幅度极小,可以满足转子初始相位静态辨识的要求。The operation of a permanent magnet synchronous motor control system requires obtaining the initial position of the rotor,while incremental photoelectric encoders mounted on synchronous motors cannot accurately obtain the initial position of the rotor.Therefore,this paper proposes using a suitable current vector to make the rotor slightly move at the initial position,and combining the AB signal of an incremental photoelectric encoder to accurately detect the rotor position of PMSM.The simulation results verify that the rotor micro-motion amplitude is minimal during the identification process,which can meet the requirements of static identification of the initial phase of the rotor.

关 键 词：永磁同步电机 初始位置检测 增量式光电编码器 

分 类 号：TM351[电气工程—电机]