摘要
多输入直流变换器(MIC)以其电路结构简单、元器件数量少而越来越受到关注。提出了单原边绕组电流源型全桥型MIC的电路拓扑系统生成方法,介绍其控制原则和电路特点。在所生成的单原边绕组隔离电流源型MIC中,变压器只有一个原边绕组,与传统多原边绕组电流源型MIC相比较具有结构简单、元器件数量少等优点,既可以单独向负载供电又可以同时向负载供电。变换器前级采用电流源型结构,输入电流连续且脉动小,可有效延长光伏电池、燃料电池等的使用寿命。以Boost型单原边绕组电流源型双输入全桥型变换器为例,分析其工作原理和控制策略,最后通过仿真实验验证。
Multi-input converter （MIC） has attracted many attentions for its simple circuit structure and less devices. The topological generated method, control method and circuit feature of the single primary winding current-fed flail-bridge MIC was proposed. The MIC had only one primary winding. Compared to the traditional multiple primary winding current-fed MIC, it had a simpler and flexible controlling structure. Meanwhile, it can power the load simultaneously or individually. The PCSC in the converter was Boost type. The input current was continuous and it can prolong the usage age of PV cell and fuel cell. The single primary winding current-fed double-input fun-bridge converter basing on Boost converter was taken as an example to analyze its operation principle, control strategy. The experimental results verify the correctness of theoretical analysis.
出处
《电源学报》
2012年第1期64-70,共7页
Journal of Power Supply
基金
南京航空航天大学基本科研业务费专项科研项目资助(NP2011004)
关键词
多输入
单原边绕组
电流源型
全桥变换器
multiple-input
single primary winding
current-fed
full-bridge converter
