一种具有高电压传输比的新型Cuk矩阵变换器  

New Cuk Matrix Converter with High Voltage Transfer Ratio

作　　者：张小平[1] 朱建林[2] 唐华平[3] 张炳根[4] 柳莎莎[2] 

机构地区：[1]湖南科技大学信息与电气工程学院,湖南湘潭411201 [2]湘潭大学信息工程学院,湖南湘潭411105 [3]中南大学机电工程学院,长沙410083 [4]湖南交通职业技术学院机电工程系,长沙410004

出　　处：《中国工程科学》2008年第4期78-83,共6页Strategic Study of CAE

基　　金：国家自然科学基金资助项目(50575228)

摘　　要：对传统矩阵变换器存在电压传输比低的缺陷进行研究,提出一种新型的称为Cuk矩阵变换器的电路拓扑结构。介绍了该拓扑结构的基本构成及其工作原理,推导了其电压传输比与占空比之间函数关系的解析表达式,阐述了所采用的双闭环控制策略的基本设计方法,并通过仿真对其有效性和可行性进行了验证。结果表明:该拓扑结构能实现输出电压和频率的任意调节,其电压传输比可大于1,也可小于1,且直接输出标准的正弦波而无需滤波环节,有效地解决了传统矩阵变换器电压传输比低的难题,具有一定的应用价值。The drawback of classical matrix converter having low voltage transfer ratio is studied and a topology of a new matrix converter called as a Cuk matrix converter is proposed. The basic configuration of this new topology, and its fundamental are firstly introduced, the analytic expression concerning functions relation of voltage transfer ratio to duty cycle is deduced, and the basic design method of double - loop control strategy is expounded. Finally the validity and feasibility of the new topology are tested by simulation. The results show that the output voltage and frequency can be modulated optionally by the new converter, of which the voltage transfer ratio can be greater than 1, or lower than 1, and an ideal sine wave can be directly obtained without filtering. Thus the inherent problem of classical matrix converter having low voltage transfer ratio is effectively solved by this study, which is of certain practical importance.

关 键 词：Cuk矩阵变换器 电路拓扑 电压传输比 双闭环控制 仿真 

分 类 号：TM46[电气工程—电器]