基于SVPWM矢量控制变频仿真分析  

Simulation of Variable Frequency System Based on SVPWM Vector Control

作　　者：佘艳[1] 李玲[1] 

机构地区：[1]顺德学院电子工程系,广东顺德528333

出　　处：《电机与控制应用》2009年第7期63-66,共4页Electric machines & control application

摘　　要：为了给变频调速系统提供必要的设计参数,依据空间电压矢量脉宽调制(SVPWM)基本原理,介绍了异步电动机、SVPWM算法在MATLAB/Simulink环境下的建模过程,以及基于矢量控制理论的变频调速系统动态模型的建立。详细阐述了实现仿真的方法,并针对仿真中的关键问题及系统的仿真结果进行了分析。仿真结果表明,采用该控制系统,电压、转矩波动小,转速响应迅速,系统的各项指标都满足电机实际运行特性要求。其仿真算法对于实现数字化控制变频调速系统具有一定的价值。To provide the necessary design parameters for the actual motor control system, the modeling course of voltage space vector pulse wide modulation （ SVPWM ） arithmetic and AC motor under MATLAB/SIMULINK environment, the dynamic modeling of frequency-variable speed-adjustable system based on vector control, based on the principle of SVPWM were introduced. The new detailed method of realizing simulation was presented, and key problems and results of the simulation were analyzed in detail. The experimental simulation results show that this system has smaller fluctuations of voltage and torque, quicker response speed, and all of the indicators accord with the performance of the actual motor, this simulation arithmetic has value to realize controlling motor with digital signals processing.

关 键 词：异步电动机 矢量控制 仿真 

分 类 号：TM921.51[电气工程—电力电子与电力传动]