表贴式永磁同步电机多参数辨识研究  

Research on Multi-parameter Identification of SPMSM

作　　者：刘政 庄佳林 杨怀志 张之宇 胡勤丰[1] LIU Zheng;ZHUANG Jialin;YANG Huaizhi;ZHANG Zhiyu;HU Qinfeng(Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China)

机构地区：[1]南京航空航天大学,南京211100

出　　处：《微电机》2022年第9期32-38,共7页Micromotors

摘　　要：电机参数的变化会影响电机控制系统的控制精度,因此参数辨识技术对于电机伺服系统具有重要意义。本文阐述了影响电机参数变化的因素并分析了电机参数变化对电机控制系统的影响。基于表贴式永磁同步电机d-q轴电压方程和运动方程,运用带遗忘因子的最小二乘法,分步辨识定子永磁磁链、电阻和d-q轴电感。仿真和实验结果表明该辨识方案具有实际工程意义。The change of motor parameters will affect the control accuracy of the motor control system,so the parameter identification technology is of great significance to the motor servo system.This paper expounded the factors that affect the change of motor parameters and analyzed the influence of the change of motor parameters on the motor control system.Based on the voltage equation and motion equation of d-q axis of the table-type permanent magnet synchronous motor,the stator permanent magnet flux,resistance and inductance of d-q axis were identified step by step by the least square method with forgetting factor.Simulation and experimental results show that the identification scheme has practical engineering significance.

关 键 词：电机参数在线辨识 表贴式永磁同步电机 带遗忘因子的最小二乘法 分步辨识 

分 类 号：TM351[电气工程—电机] TM341[自动化与计算机技术—检测技术与自动化装置] TP273[自动化与计算机技术—控制科学与工程]