航天器环境工程2026，Vol.43Issue(2)：141-147,7.DOI:10.12126/see.2026009
航天器热控电加热回路温度继电器串并联混合冗余结构的设计与分析
Design and analysis of series-parallel hybrid redundancy configurations for temperature relays in spacecraft electric heating circuits
摘要
Abstract
To address the lack of systematic comparison and quantitative selection criteria regarding the failure behavior of hybrid redundancy configurations for temperature relays in spacecraft thermal control electric heating circuits,this study performs a reliability analysis and failure mode comparison of two series-parallel redundant configurations.Both architectures achieve extremely high reliability(≥0.999 990)but exhibit distinct fault-tolerance characteristics.The intra-group series and inter-group parallel configuration effectively suppresses unintended energization(false ON)caused by contact sticking(17 cases),yet is more susceptible to unintended open-circuit(false OFF)(25 cases).Conversely,the intra-group parallel and inter-group series configuration exhibits strong tolerance to unintended shutdown due to open-circuit failures(17 cases),but provides weaker suppression of unintended energization(25 cases).These differences arise from the distinct logic and failure propagation paths of the two configurations.Based on failure probabilities,system safety priorities,and resource constraints,targeted engineering recommendations are proposed,providing theoretical support and decision-making references for redundancy design in spacecraft thermal control electric heating circuits.关键词
航天器电加热回路/混合冗余结构/可靠度计算/故障模式分析Key words
spacecraft electric heating circuits/hybrid redundancy configurations/reliability calculation/failure mode analysis分类
航空航天引用本文复制引用
化延堂,刘春龙,胡日查,张敏..航天器热控电加热回路温度继电器串并联混合冗余结构的设计与分析[J].航天器环境工程,2026,43(2):141-147,7.基金项目
吉林省科技发展计划项目"基于光瞳旋转的稀疏孔径成像系统像质提升方法研究"(编号:20260101039JJ) （编号:20260101039JJ）
