嫦娥四号中继星供配电分系统可靠性设计与验证

Reliability Design Verification for Power Supply System of CE-4 Relay Satellite

针对嫦娥四号中继星的轨道特点、在轨工作模式和任务要求,供配电分系统采用半调节母线拓扑结构和电源调节与配电控制一体化的方案实现了集成化、轻量化设计需求。重点识别了供配电分系统可靠性设计的关键要素,从供电可靠性、能源安全性和在轨能源管理等方面进行分析和设计,并进行了充分的地面专项验证试验。通过在轨多种工况考核和遥测数据分析可知,供配电分系统工作正常,满足设计要求。

For the orbit features,mission demands and operating modes of CE-4 relay satellite,an integrated and lightweight power supply system is needed.A half-regulated power bus is prior to full-regulated power bus.For reliability of power supply,key design factors such as power supply and control reliability,power safe and on-orbit power management are recognized and implemented.All of the factors are analyzed in this paper,and sufficient effective testing items are finished in ground.Power supply system works well in every operating mode by screening the remote data.All reliable measures are verified correctly and meet the mission demands of the of CE-4 relay satellite.