一种新型Boost矩阵变换器及其控制策略  

A new Boost matrix converter and its control strategy

作　　者：张小平[1] 唐华平[1] 朱建林[2] 岳舟[2] 柳莎莎[2] 

机构地区：[1]中南大学机电工程学院 [2]湘潭大学信息工程学院,湖南湘潭411105

出　　处：《中南大学学报（自然科学版）》2007年第3期517-522,共6页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(50575228)

摘　　要：针对传统矩阵变换器存在电压传输比低的问题,提出一种新型的矩阵变换器电路拓扑结构。研究该拓扑结构的基本构成和工作原理,推导并分析其电压传输比与占空比之间函数关系的解析表达式,阐述2种有效控制策略即滑模控制和双闭环控制的基本设计方法并对比分析其不同的特点,最后通过仿真对其有效性和可行性进行验证。研究结果表明:该新型电路在2种控制方案下均能实现电压传输比和输出频率的任意调节,且输出电压波形的正弦性好,失真度小,有效地解决了传统矩阵变换器电压传输比低的问题。Based on the low voltage transfer ratio of conventional matrix converter, a new matrix converter referred to as a Boost matrix converter was proposed. The basic configuration of this new topology and its fundamental were introduced, the analytic expression concerning functions relation of voltage transfer ratio to duty cycle was deduced, the two effective control strategies, i.e., sliding mode control and double-loop control, were expounded particularly and their different attributes were compared. The validity and feasibility of the new topology were tested by simulation. The results show that the modulation of voltage transfer ratio and output frequency can be achieved optionally through this new converter by means of the two control strategies and an ideal sine output wave with less distortion can be gotten, so the inherent problem of conventional matrix converter with low voltage transfer ratio is solved effectively.

关 键 词：Boost矩阵变换器 电压传输比 滑模控制 双闭环控制 仿真 

分 类 号：TM464[电气工程—电器]