能源是航天器能够正常工作的基本保证,太阳能、引力能、真空能等太空即时补给能源是航天器供能的焦点。提出基于大口径薄膜反射的空间聚能系统的研究方案,利用充气式囊状薄膜反射镜结构聚焦太阳能,在焦斑处结合热电转换技术,实现了太阳能的汇集和能量的热电转换,并应用仿真软件模拟得到了不同焦距值的反射面聚焦效果的对比数据,验证了方案的可行性。所提出的以光、热、电三种能量形式为飞行器供能的设想为空间飞行器能源系统的设计提供了新思路和新技术。 Energy is the basic guarantee that a spacecraft can work normally. Solar energy, gravitational energy, vacuum energy and other real-time space energy supplies are the focus of spacecraft power supply. A research scheme of space energy concentrating system based on large-aperture thin-film reflection is proposed. The solar energy is focused by the structure of the inflatable capsule thin-film reflector, the solar energy collection and the thermoelectric conversion are realized by combining the thermoelectric conversion technology at the focal spot, and the simulation The simulation data obtained by the different focal length of the reflective surface of the focusing effect of the contrast data to verify the feasibility of the program. The proposed concept of supplying energy to aircraft with three forms of energy, such as light, heat and electricity, provides new ideas and new technologies for the design of spacecraft energy systems.