一种宽供电范围开关电源变换器设计  

A Wide-range Power Supply Converter Design

作　　者：陈修林 王富光 张顺彪 

机构地区：[1]南车电气技术与材料工程研究院,湖南株洲412001

出　　处：《机车电传动》2015年第3期23-25,34,共4页Electric Drive for Locomotives

摘　　要：为了满足宽供电范围需求,开发设计了一种电感耦合式Step-down CUK变换器开关电源,对该变换器的输入输出电流进行了稳态分析,表明变换器具有的电流连续特性,有利于提升变换器的功率密度;提出了一种变频控制策略及其实现方法,解决了变换器的稳定性问题。试验验证及批量装车考核表明该设计具有实用性。To fulfill the requirement of wide-range power supply, an inductor-couple step-down CUK converter was designed. Input and output current of the converter in steady state was analyzed, which showed the continuous current feature, in favour of improve converter power density： and a kind of variable frequency control strategy and its realization method were presented, which solved the stability problem of the convener. Experiment and batch on-board test validated the proposed design.

关 键 词：Step-down CUK BUCK BOOST 变频控制 开关电源 宽供电范围 中央控制单元 

分 类 号：TM46[电气工程—电器]