一种基于PSCAD/EMTDC仿真平台的SVPWM逆变器控制算法  

A SVPWM Inverter Control Algorithm Based on PSCAD/EMTDC

作　　者：张紫凡[1] 向萌[1] 焦茜茜[1] 闫兴建 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206 [2]华能澜沧江水电有限公司,云南昆明650214

出　　处：《电网与清洁能源》2012年第6期19-24,共6页Power System and Clean Energy

基　　金：国家重点基础研究发展计划项目(973项目)(2009CB219706)~~

摘　　要：空间矢量脉宽调制法(SVPWM)比传统的正弦脉宽调制法(SPWM)具有较高的直流电压利用率以及较低的输出波形失真度。介绍了三相逆变器的SVPWM控制算法,建立了基于PSCAD/EMTDC仿真平台的三相逆变器模型,并给出了基于PSCAD/EMTDC仿真平台的SVPWM优化控制算法。通过建立一个控制系统来进行仿真和研究,给出了仿真线电压及相电压波形。仿真结果充分显示了SVPWM技术应用于大功率场合的优点。Compared with the commonly used sine-wave pulse width modulation(SPWM) method,the Space Vector Pulse Width Modulation(SVPWM) method has higher utilization rate of DC voltage and smaller output waveform distortion.This paper introduces the SVPWM control technology into inverters,and builds a model of three phase inverter based on PSCAD/EMTDC simulation platform and details the implementation of SVPWM modulation method with PSCAD/EMTDC software.Through establishment of a complete control system for simulation and research,it gives the simulation waveforms.The simulation results show the advantages of the SVPWM technique,which is more suitable for high-power applications.

关 键 词：SVPWM PSCAD/EMTDC 逆变器 控制算法 

分 类 号：TM464[电气工程—电器]