空间电压矢量控制算法的改进与仿真  

Improvement and Simulation of Space Voltage Vector Control Algorithm

作　　者：吕高[1] 赵巧娥[1] 章伟明[1] Lv Gao;ZHAO Qiao-e;ZHANG Wei-ming(Shanxi University,Taiyuan 030013,China)

机构地区：[1]山西大学,太原030013

出　　处：《火力与指挥控制》2016年第8期165-168,共4页Fire Control & Command Control

基　　金：山西省科技基础条件平台建设基金资助项目

摘　　要：首先详细分析了空间电压矢量调制(SVPWM)的工作原理,在3/2坐标变换的基础上,提出来用Uβ值的正负和合成电压矢量与Uα轴夹角的余弦值来判断扇区的新算法,最后以异步电机为控制对象,在MATLAB仿真软件上对控制电路和主电路进行仿真验算,仿真结果表明算法准确,电机转速平稳,波动小。This paper makes a detailed analysis of the working principle of voltage space vectorpulse width modulation (SVPWM),on the base of 3 / 2 transformation ,a new algorithm of sectorselected is used,that is value of the positive and negative of U茁and cos兹between voltage vector andU琢,finally asynchronous motor is used as the control object,the control circuit and main circuitsimulation is verificated in the MATLAB simulation software . The simulation results show thatalgorithm is accurate,motor speed is stable,fluctuation is small.

关 键 词：SVPWM 扇区判断 MATLAB 

分 类 号：TM343[电气工程—电机]