基于立方星的电池管理模块设计

Design of Battery Management Module Based on CubeSat

电池管理是卫星电源系统的核心任务之一,卫星电池的寿命很大程度上决定了卫星的在轨工作寿命。鉴于此,针对卫星电源系统的研究将有助于提升卫星的使用寿命。基于立方星电池管理模块,介绍了航天电池管理模块设计的全过程。主要包括航天级电池的实验筛选与配对,电池组的安全保护设计、电池组内各节电池均衡控制设计、电池管理模块内部数据采集与控制等多个方面。最后通过立方星电池管理模块在轨工作实验数据分析,证明了立方星电池管理模块的合理性及可靠性,指标满足设计要求。

Battery management is one of the key tasks of the satellite power system.The live span of the satellite batteries largely determines the operating life of the satellite in orbit.Therefore,research on satellite power systems can help to increase the service life of satellites.Based on the CubeSat battery management module,this paper introduces the whole process of designing the space battery management.This paper mainly includes the sifting and matching of space-grade batteries,the safety protection design of the battery pack,the balance control design of each battery in the battery pack,the internal data acquisition and control of the battery management module.In the end,through the analysis of the on-orbit data,this paper proved that the rationality and reliability of the CubeSat battery management module is rational and reliable and meet the design requirements.