摘要
由于结构简单、体积小、质量轻、损耗小、效率高等特点,近年来永磁同步电动机(PMSM)已成为轨道交通领域研究的焦点。本文介绍了PMSM在控制系统中的优势,利用Matlab|simulink仿真软件,采用坐标变换、SVPWM算法,建立PMSM及其矢量控制系统的仿真模型。通过观测定子三相电流、电机转速、转矩以及d-q轴电流的变化,对系统中的参数进行调整。结果表明,该调速系统调速特性好、响应速度快,验证了矢量控制对PMSM的合理性和优越性。
Due to its simple structure,small size,light weight,low loss and high eficiency,permanent magnet synchronous motor(PMSM)has become the focus of research in the field of rail transit.This paper introduces the advantages of PMSM in the control system.Using Matlab|simulink simulation software,using coordinate transformation and SVPWM algorithm,the simulation model of PMSM and its vector control system is established.The parameters in the system are adjusted by observing changes in the stator three-phase current,motor speed,torque,and dq axis current.The results show that the speed control system has good speed regulation characteristics and fast response speed,which verifies the rationality and superiority of vector control for PMSM.
出处
《变频器世界》
2020年第8期59-63,共5页
The World of Inverters
