一种SVPWM过调制算法在永磁牵引逆变器中的应用研究  

Application Research of SVPWM Overmodulation Algorithm in Permanent Magnet Traction Inverter

作　　者：张育超[1] 徐鹏程 ZHANG Yuchao;XU Pengcheng(China Shipbuilding Industry Corporation No.713 Institute,Zhengzhou Henan 450000;CSIC Haiwei Zhengzhou High-tech Co.,Ltd.,Zhengzhou Henan 450000)

机构地区：[1]中国船舶重工集团公司第七一三研究所,河南郑州450000 [2]中船重工海为郑州高科技有限公司,河南郑州450000

出　　处：《河南科技》2019年第14期53-56,共4页Henan Science and Technology

摘　　要：为了提高地铁牵引逆变器直流母线电压利用率,扩展电动机运行范围,改善电动机的动态特性,有关部门应采用叠加原理的过调制处理算法,并应用在永磁同步电动机控制系统中,减小电压谐波畸变率,减小转矩波动。本文首先详细介绍该过调制算法原理,然后给出永磁同步电动机的运行方式及各个同步区的调制模式,最后在MATLAB/Simulink环境下,建立永磁同步电动机控制系统的仿真模型,并对基于叠加原理的过调制算法和传统单模式过调制算法进行对比仿真。In order to increase the utilization ratio of DC bus voltage of subway traction inverter, extend the running range of motor and improve the dynamic characteristics of the motor, the relevant departments should adopt the overmodulation processing algorithm based on the superposition principle and apply it in the permanent magnet synchronous motor control system to reduce the voltage harmonic distortion rate and reduce the torque fluctuation. This paper first introduced the principle of the overmodulation algorithm in details, then gave the operation mode of the permanent magnet synchronous motor and the modulation mode of each synchronous zone. Finally, under the environment of MATLAB/Simulink, the simulation model of permanent magnet synchronous motor control system was established,and the over-modulation algorithm based on superposition principle was compared with the traditional single-mode over-modulation algorithm.

关 键 词：永磁同步电动机控制系统 过调制 牵引逆变器 叠加原理 

分 类 号：TM341[电气工程—电机]