摘要
转子初始位置的测定与永磁同步电机(permanent magnet synchronous motor,简称PMSM)性能密切相关.在传统高频脉振三角波注入法基础上,结合傅里叶分解及电路叠加定理,提出q轴电流化简法.设计调制信号,将此调制信号与q轴电流信号相乘得位置误差信号,以跟踪转子位置.向转子初始位置的两方向注入高频脉冲信号,以判定磁极极性.仿真结果表明:相对于传统高频脉振三角波注入法,q轴电流化简法的转子位置角误差、转速误差更小,能对永磁同步电机实现无传感器的可靠控制.
The determination of rotor initial position is closely related to the performance of permanent magnet synchronous motor.Based on the traditional injection method of high frequency pulse triangular wave,combined with Fourier decomposition and circuit superposition theorem,the q-axis current simplification method was proposed.Modulation signal multiplied by q-axis current signal to obtain position error signal to track rotor position was designed.High frequency pulse signal was injected into both directions of the rotor initial position to determine the polarity of the magnetic poles.The simulation results showed that compared with the traditional high frequency pulse triangular wave injection method,the error of rotor position angle and speed by the q-axis current simplification method became smaller,and the sensorless reliable control of the permanent magnet synchronous motor was realized.
作者
朱昱豪
于永进
李德兵
ZHU Yuhao;YU Yongjin;LI Debing(College of Electrical and Automation Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Shandong Kehua Electric Power Technology CO.,LTD.,Jinan 250101,China)
出处
《安徽大学学报（自然科学版）》
CAS
北大核心
2021年第6期65-71,共7页
Journal of Anhui University(Natural Science Edition)
基金
国家自然科学基金资助项目(61803233)。
关键词
无传感器控制
高频注入
q轴电流
位置追踪
磁极辨别
sensorless control
high frequency injection
q-axis current
position tracking
magnetic pole discrimination
