超稀疏矩阵变换器的控制策略及其仿真分析  

Research of control strategy for ultra-sparse matrix converters

作　　者：徐艳春[1] 杨昊 程杉[1] XU Yan-chun;YANG Hao;CHENG Shan(College of Electrical Engineering&New Energy,China Three Gorges University,Yichang 443002,China)

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002

出　　处：《电力科学与技术学报》2018年第3期70-74,共5页Journal of Electric Power Science And Technology

基　　金：国家自然科学基金(5160070515)

摘　　要：超稀疏矩阵变换器(USMC)相较于双级矩阵变换器(TSMC)具有开关数量少,控制简单等优点,近年来引起广泛关注。常见的TSMC直驱风力发电系统中,其开关数量多且控制复杂。采用USMC取代TSMC,则控制更加简单,且能量单向流通满足直驱风力发电系统的要求。通过对USMC的控制策略进行研究,并将SVPWM控制策略应用到USMC中,实现对USMC的调制,简化控制策略。同时,推导出SVPWM调制策略时输出功率因数角取值范围,最后用MATLAB软件对其进行仿真,仿真结果验证了控制策略的可行性,为USMC直驱风力发电系统的实现奠定了理论基础。Compared to the two-stage matrix converter(TSMC),the ultra-sparse matrix converter(USMC)attracts more attentions in recent years.The direct-driven wind power generation system with traditional TSMC has a large number of switches and a ralatively complex control process.Therefore,replacing TSMC by USMC can achieve a simpler control strategy and also make the energy flow meet the requirements of direct-driven wind power generation system.In this paper,the control strategy of USMC is studied.The SVPWM control strategy is utilized to realize the modulation of USMC and simplify the control strategy.The output angle of power factor range in SVPWM modulation strategy is derived.The feasibility of control strategy is verified by the MATLAB simulation.This research lays theoretical foundations for the realization of USMC direct-driven wind power generation system.

关 键 词：双级矩阵式变换器 超稀疏矩阵式变换器 空间矢量调制 MATLAB 

分 类 号：TM624[电气工程—电力系统及自动化]