摘要
介绍了国外合成孔径雷达(SAR)卫星电源系统的特点,从SAR卫星成像模式多、峰值功率大、较大的载荷平台功率比以及脉冲功率工作等方面分析了其对电源系统设计的需求;介绍了欧洲和加拿大研制的Cosmo-Skymed卫星、TerraSAR-X卫星、Radarsat-2卫星、Sentinel-1卫星、EarthCARE卫星等的电源系统设计概况,对其电源系统拓扑、母线体制、太阳电池阵功率调节方式、锂离子蓄电池组配置等技术方案的特点进行了归纳总结,在此基础上提出了我国SAR卫星电源系统技术发展的建议。
The electrical power systems of European and Canadian synthetic aperture radar （SAR） satellites are introduced. The characteristics of SAR satellite electrical power system were presented in details, particular emphasis is put into such aspects as various imaging modes, peak loads demand,high power ratio of payload to platform, as well as . All those requirements bring challenges to the design of electrical power system; the in orbit electrical power system schemes of European and Canadian SAR satellite are presented and analyzed, including Cosmo-Skymed, TerraSAR-X, Raclarsat-2, Sentinel-1 and EarthCARE, and the system topology characteristic, bus architecture characteristic, regulation mode for output solar array power and Li-ion battery configuration were analyzed and summarized. At the end of the paper, development suggestions for SAR satellite electrical power system are given.
出处
《航天器工程》
北大核心
2015年第3期107-113,共7页
Spacecraft Engineering
基金
国家重大科技专项工程
关键词
SAR卫星
电源系统
设计方案
SAR satellite
electrical power system
design scheme
