一种小型SAR卫星电源系统设计  

Design of Power Supply System for Small SAR Satellite

作　　者：雷英俊[1] 马亮[1] 李海津 LEI Yingjun;MA Liang;LI Haijin(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)

机构地区：[1]北京空间飞行器总体设计部

出　　处：《航天器工程》2019年第5期101-104,共4页Spacecraft Engineering

摘　　要：合成孔径雷达(SAR)卫星电源系统具有大功率脉冲供电、响应速度快的特点。文章在分析小型SAR卫星用电需求和设计约束的基础上,提出了一种适应于小型SAR卫星的电源拓扑结构。电源系统采用复合母线体制,在低压不调节母线基础上生成一条全调节母线和一条高压不调节母线,利用全调节母线为平台负载设备供电,利用高压不调节母线为SAR载荷供电。电源系统为平台、SAR载荷分别配置能量型锂离子蓄电池组和功率型锂离子蓄电池组,有效保证卫星负载的不同用电需求。该电源系统方案可为我国后续小型大功率SAR卫星电源系统设计提供参考。SAR satellites have the characteristics of high power pulse and quick response.The power requirement and constraints are analyzed and summarized.A novel power supply topology for small SAR satellite is proposed.The power system uses composite buses.A high voltage unregulated bus and a regulated bus are generated on the basis of the unregulated bus,the fully regulated bus is used to supply power to the platform device,and the SAR load is supplied by the high voltage unregulated bus.The power system is configured with an energy-type lithium-ion battery pack and a power-type lithium-ion battery pack for the platform and SAR load respectively,to effectively ensure the different power requirements of the satellite load.The scheme proposed in this paper can provide reference for the other small SAR satellite power supply system design.

关 键 词：小型SAR卫星 电源系统 复合母线体制 

分 类 号：V442[航空宇航科学与技术—飞行器设计]