新型Buck-Boost矩阵变换器的双闭环控制策略  

A double-loop control strategy for the new Buck-Boost matrix converter

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

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]中南大学机电工程学院,湖南长沙410083 [3]湘潭大学信息工程学院,湖南湘潭411105 [4]湖南交通职业技术学院机电工程系,湖南长沙410004

出　　处：《控制理论与应用》2009年第2期203-208,共6页Control Theory & Applications

基　　金：国家自然科学基金资助项目(50575228).

摘　　要：为了克服传统矩阵变换器电压传输比低的缺陷,提出了新型Buck-Boost矩阵变换器,采用双闭环控制策略进行控制.介绍了该控制策略的基本原理与设计方法,对比分析了该控制策略与滑模控制及离散滑模控制的各种特性,并通过仿真对其控制效果进行了验证.结果表明:该控制策略不仅具有比滑模控制和离散滑模控制更加优良的动态性能,而且还具有更强的谐波抑制能力,其输出波形的谐波失真度更小,稳态精度更高,因而具有更好的应用价值.Because of the low voltage transfer ratio in a conventional matrix converter and no improvement can be made by employing different control strategies, a new Buck-Boost matrix converter is proposed by employing a doubleloop control strategy. The fundamental principle of this control strategy and its design method are introduced. Various characteristics are then compared among this control strategy, the sliding mode control and the discrete sliding mode control. The validity of this control strategy is also tested by simulation. The results show that the double-loop control strategy makes the system in better dynamic performance and stronger harmonic suppression than the sliding mode control and the discrete sliding mode control, and achieves lower harmonic distortion and higher steady-state precision. These are the most valuable advantages of the proposed converter in engineering applications.

关 键 词：Buck-Boost矩阵变换器 双闭环控制策略 对比分析 仿真 

分 类 号：TM46[电气工程—电器]