平流层飞艇能源系统的可靠性对于飞艇设计是至关重要的。对能源系统的可靠性进行了分析和研究。首先,对太阳电池阵、可再生燃料电池,以及能源系统拓扑进行了可靠性分析;进一步结合推进系统配置可靠性分析的结果,对能源系统与推进系统的基本组合可靠性进行了研究;最后,提出了可靠性改进的组合拓扑方案。结果显示,采用可靠性改进组合,能源与推进系统的可靠性提高了17.5%。 The reliability of the stratospheric airship energy system is crucial to airship design. The reliability of energy system is analyzed and researched. Firstly, the reliability analysis of solar array, renewable fuel cell and energy system topology is carried out. The reliability of basic combination of energy system and propulsion system is further studied based on the results of reliability analysis of propulsion system. Finally, A combined topology scheme with improved reliability is proposed. The results show that the reliability of the energy and propulsion system has been increased by 17.5% with a combination of reliability improvements.