卫星主功率通路短路故障下工作模式分析  

Analysis of Short Circuit for Spacecraft Primary Power Connections

作　　者：章玄 侯睿 赵田 贺奉平 蒋硕[1] 贠磊[1] 李键 ZHANG Xuan;HOU Rui;ZHAO Tian;HE Fengping;JIANG Shuo;YUN Lei;LI Jian(Institute of Telecommunication and Navigation Satellite,China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]中国空间技术研究院通信与导航卫星总体部,北京100094

出　　处：《航天器工程》2022年第4期59-67,共9页Spacecraft Engineering

摘　　要：针对卫星主功率通路短路故障暂态响应复杂、主功率通路短路后能源系统底线不清晰的问题,文章围绕多重故障情况下太阳翼驱动机构环间短路故障、一次母线短路故障、地面电缆一次母线与蓄电池短路故障这3种主功率通路故障模式,分别提取了影响系统工作模式的关键因素并建立了模型,通过最坏情况分析,合理优化了模型规模,并基于仿真分析了3种主功率通路故障模式后能源系统的工作模式及响应过程。仿真结果表明:基于所述条件,3种主功率通路故障模式在故障发展的各阶段存在对能源系统关联性影响的风险,底线仿真结果可以为能源系统故障容限能力和保护设计提供参考。Aiming at the problem that the response of spacecraft primary power connections short-circuit is complex and the worst impact of the short-circuit fault is unclear,this paper extracts the key factors that affect the working mode of the system and establishes the model for three kinds of the primary power connections short-circuits,such as the short-circuit between the rings of solar array drive assembly,the short-circuit between primary bus and structure,and the short-circuit between primary bus and battery.Through the worst-case analysis,this paper reasonably optimizes the scale of the model.And the operation mode and response process of the energy system after three kinds of the primary power connections short-circuits are analyzed in extreme cases.Based on the simulation results,this paper presents the risk of the influence of energy system on the correlation of these short-circuit faults.The baseline simulation results can be used for energy system fault tolerance and protection design.

关 键 词：主功率通路 短路故障 工作模式 

分 类 号：V11[航空宇航科学与技术—人机与环境工程]