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,验证了采用i_(d)=0的SVPWM矢量控制对PMSM的可行性与合理性。
Due to the characteristics of simple structure,small size,light weight,small loss and high effi ciency,permanent magnet synchronous motor(PMSM)has become the focus of research in the fi eld of rail transit in recent years.This paper introduces the advantages of PMSM in the control system,and uses Matlab|simulink simulation software to establish a simulation model of PMSM and its vector control system by using coordinate transformation and SVPWM algorithm.By observing the changes of stator three-phase current,motor speed,torque and D and Q axis current,the parameters in the system are adjusted.The results show that the speed regulation system has good speed regulation characteristics and fast response speed,which verifi es the feasibility and rationality of SVPWM vector control using=0 for PMSM.
出处
《时代汽车》
2023年第8期156-158,共3页
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