带解耦控制的三输入直流变换器建模及调节器设计  

Modeling and Regulator Design for Three-Input DC-DC Converters with Decoupling Control

作　　者：李艳[1] 郑琼林[1] 陈嘉垚 赵闯[2] 

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]燕山大学电气学院,秦皇岛066004

出　　处：《电工技术学报》2013年第4期109-118,共10页Transactions of China Electrotechnical Society

基　　金：中央高校基本科研业务费专项资金(2011BJM116);台达电力电子科教发展基金(DREG2011010);中国博士后基金(2011M500225);高等学校博士学科三专项科研基金(20110009120032)资助项目

摘　　要：在包含多个输入源的新能源联合供电系统中,采用一个多输入直流变换器(MIC)代替传统的多个单输入直流变换器,可以简化电路结构,降低系统成本。采用MIC构成的新能源联合供电系统是一个典型的多输入-多输出耦合系统,因此,闭环系统的设计非常复杂。本文以一种新型的Buck、Boost、Buck-Boost三输入变换器为例,将解耦控制环节加入系统中,这样就可以方便的进行闭环调节器的设计,从而提高系统的稳态和动态性能。最后通过一个400W的原理样机验证该设计方法的有效性。此设计方法也可以应用于其他三输入直流变换器系统中。Hybrid power systems derive power simultaneously from several renewable energy sources and deliver power continuously to the load. For such systems, the use of a multiple-input converter （MIC） has the advantage of simpler circuit design and lower cost. The hybrid power system with a MIC is a typical multiple-input and multiple-output coupled system, so the closed-loop design is very complicated. In this paper, a novel three-input Buck, Boost, Buck-Boost converter is taken as an example, decoupling control will be inserted to the system and the regulator can be designed respectively. Static and dynamic permanence will be enhanced. Experimental results are given to verify the design effectiveness with a 400W prototype. This method can be applied to the other three-input DC-DC converters.

关 键 词：新能源联合供电系统 多输入直流变换器 建模 解耦 调节器设计 

分 类 号：TN624[电子电信—电路与系统]