永磁同步电机参数辨识研究综述

Review of research on parameter identification of permanent magnet synchronous motor

在实际运行过程中,永磁同步电机的电磁参数会受温度和磁路饱和程度等因素的影响,导致电机控制系统效果降低,甚至会造成电机永久损坏,因此电机参数的精确获取对电机高性能运行起着至关重要的作用。本文首先介绍了永磁同步电机数学模型并总结了电机参数变化的原因,然后对参数辨识方法进行归纳和比较,最后提出了永磁同步电机参数辨识中亟需解决的问题以及未来的研究方向,以期为今后永磁同步电机参数辨识技术提供研究思路。

In the actual operation process of permanent magnet synchronous motor(PMSM),the electromagnetic parameters of the motor will be affected by such factors as temperature and saturation degree of magnetic circuit,so as to reduce the effect of the motor control system and even cause permanent damage to the motor.Therefore,accurate acquisition of motor parameters plays a crucial role in the high-performance operation of the motor.This paper first introduces the PMSM mathematical model and summarizes the reasons for the change of motor parameters,then summarizes and compares the methods of parameter identification,and finally puts forward the urgent problems to be solved in PMSM parameter identification and the future research direction,in order to provide ideas for the future PMSM parameter identification technology.