摘要
三端口DC-DC变换器可以同时将太阳电池阵和蓄电池组的功率统一变换到负载端。从外部端口看,电源控制器可以看作一个双输入、单输出的三端口DC-DC变换器,同时实现太阳电池阵调节、蓄电池组充放电控制,并保持负载端电压稳定。文章从三端口DC-DC变换器的拓扑结构、控制方法等方面进行调研,分析不同三端口DC-DC变换器的设计原理和特点,对其关键技术和适用性加以总结,提出电源控制器优化设计建议,可为实现卫星电源系统高功率密度、低成本设计提供参考。
A three-port DC-DC converter can convert the power of solar array and battery to the load synchronously.Power source controller is really a dual-input-single-output DC-DC converter from the external ports and achieves shunting,charging,discharging and load voltage regulation.This paper investigates the actuality of the three-port DC-DC converters and presents a detailed analysis of their topologies and controllers.A summary of the key technologyies of three-port DC-DC converters is presented.The content and conclusion can provide an engineering approach and reference to designing high-power-density and low-cost power system for satellites.
出处
《航天器工程》
2014年第5期116-120,共5页
Spacecraft Engineering
关键词
卫星电源
三端口
DC-DC变换器
拓扑
satellite electrical power
three ports
DC-DC converter
topology
