星载多路输出正激变换器的新型优化方法  

A New Optimization Method of Multiple Output Forward Converter in Space Satellite Application

作　　者：杨刚[1] 杜建华[2] 彭政[2] 张之梁[1] 

机构地区：[1]江苏省新能源发电与电能变换重点实验室,南京航空航天大学,江苏南京210016 [2]北京控制工程研究所,北京100190

出　　处：《电力电子技术》2014年第10期1-5,共5页Power Electronics

基　　金：国家自然科学基金(51007036)~~

摘　　要：针对航天供电电源,提出一种星载多路输出正激变换器新型优化方法。该方法对多路输出次级整流电路建模,提出权重系数优化方法;通过对系统采用受控源替代建模法,对所求系统进行小信号建模,结合所提权重系数优化方法,进行闭环参数设计,满足系统交叉调整率和稳定性要求。由于航天电源需要良好的稳定性和交叉调整率,相比单路控制的多路输出变换器,采用加权反馈技术的多路输出变换器在交叉调整率和电压变化率上有良好提升。为验证理论的正确性,搭建了单路控制和采用加权反馈技术的多路输出正激变换器样机,实验验证了所提方法的有效性。A new optimization method of the multiple output forward converter used in the space satellite is proposed.The weighted coefficient and the small signals modeling are proposed.The aerospace power requires good stability and cross regulation,compared to the multiple output converter with one sensed output control,the stability and the cross regulation are better in the weighted feedback multiple output converter.In order to verify the proposed designed method,the prototypes of the multiple output converter with one sensed output control and the multiple output converter with weighted feedback control is built,the analysis and experimental results verify the proposed design method.

关 键 词：变换器 加权反馈 交叉调整率 

分 类 号：TM46[电气工程—电器]