电气传动2016，Vol.46Issue(10)：31-37,7.DOI:10.19457/j.1001-2095.20161007
基于SiC JFET的矩阵变换器仿真
Simulation of SiC JFET Based Matrix Converter
摘要
Abstract
Modeling of SiC JFET-based matrix converter(MC)is explored in Saber. Firstly,method of parameter extraction and modeling of normally-on SiC JFETs was introduced. Then a new bidirectional switch structure was proposed,which could overcome the drawbacks of normally-on SiC JFETs that short circuits were prone to happen at the moment of powerup and under the condition of auxiliary power supply failure. Based on the proposed bidirectional switch structure,the main circuit of 3×3 matrix converter was built in Saber. Then,double space vector modulation of matrix converter was realized with the MAST language. Considering the time difference between turn-on and turn-off of normally-on SiC JFET,an optimized four-step commutation strategy was used,which improved the quality of output waveform. Finally,simulation results demonstrate the validity and reliability of the proposed model and optimized four-step commutation strategy.关键词
矩阵变换器/碳化硅结型场效应晶体管/双向开关/变步长换流/Saber软件Key words
matrix converter/SiC junction field-effect transistor(JFET)/bidirectional switch/varying-step commutation/Saber software分类
信息技术与安全科学引用本文复制引用
王莉娜,刘丹丹..基于SiC JFET的矩阵变换器仿真[J].电气传动,2016,46(10):31-37,7.基金项目
国家自然科学基金 （）
