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空间站结构复杂,通常由多个舱段组成,与飞船等飞行器进行交会对接后,各舱段和对接飞行器自有的能源系统可能会由于空间位置及相互遮挡等原因而无法满足自身供电需求,这就需要对舱体电源系统进行并网供电。文章论述了“天宫一号”目标飞行器与“神舟”飞船采用的并网供电方案,通过并联冗余及自动均流控制实现不同舱体间的功率传输;在此基础上,通过调研国外空间站并网供电技术,比较了空间飞行器组合体并网供电中的技术方案及特点,总结了目前空间站并网供电模式可采用的类型,最后提出了我国未来空间站并网供电可采取的方案。
The structure of a space station is complex and usually consists of several compartments. After rendezvous and docking with an aircraft such as a spacecraft, the energy systems of the respective compartments and docking vehicles may not be able to meet their own power supply needs due to space location and mutual shelter You need to power the cabin power system and power supply. This paper discusses the grid-connected power supply scheme adopted by the “Tiangong 1” and “Shenzhou” spacecraft, and achieves the power transmission between different compartments through the parallel redundant and automatic current sharing control. On this basis, The technology of grid-connected power supply in spacecraft combination is compared. The available types of grid-connected power supply mode in space station are summarized. Finally, the scheme of grid-connected power supply in future space station in China can be put forward .