一种改进的PMSM转子位置估计方法  

An Improved PMSM Rotor Position Estimation Method

作　　者：刘细平 张云 王凯 LIU Xi-ping;ZHANG Yun;WANG Kai(Jiangxi University of Science and Technology,Ganzhou 341000,China)

机构地区：[1]江西理工大学,电气工程与自动化学院,江西赣州341000

出　　处：《电力电子技术》2020年第9期33-35,共3页Power Electronics

基　　金：国家自然科学基金(51767009,51267006);江西省科技项目(20151BBE50109,20153BCB23012,GJJ160598)。

摘　　要：准确的位置估计对电机无位置传感器控制尤为重要,传统高频注入法存在忽略反电动势项、交叉耦合项和电流检测偏差等问题。为了提高位置估计精度,针对上述问题在位置估计中的影响进行了理论分析,提出了一种参数自适应滤波及位置估计补偿的改进高频注入永磁同步电机(PMSM)控制策略,可消除估计位置中的二次谐波,补偿估计误差。仿真与实验结果表明,与传统方法相比,所提控制方法可显著减小位置估计误差,具有良好的控制效果。The estimation of accurate position is extremely important for the control of motor without position sensor.The traditional injection method with high frequency exists many issues like the ignore of anti-electric,cross-coupling,deviation of checking electrical current etc.To improve the accuracy of estimated position,theoretical analysis is in progress regarding above problems,come up with a permanent magnet synchronous motor(PMSM)control strategy improving high frequent injection which contain parameter adaptive filtering wave and position estimation compensation.It can both eliminate the second harmonic wave in estimated position and compensate estimated error.The result of simulation and experiment show that comparing with the traditional method,the mentioned control way have excellent control effect and significantly reduce error on estimated position.

关 键 词：永磁同步电机 高频注入法 位置估计 

分 类 号：TM351[电气工程—电机]