摘要
传统的任务规划方法依据卫星寿命末期最恶劣条件下电源系统供电能力给出短期载荷允许的最大工作时间,导致卫星系统效能偏低。针对这个问题,首先给出了太阳同步轨道卫星的能源约束条件模型、锂离子蓄电池组充放电过程模型,以及影响太阳电池阵输出功率的输入条件模型,包括:太阳入射角、地球反照、姿态机动、星体对太阳电池的遮挡。在此基础上,提出了一种以任务执行时的电源系统状态和轨道光照条件状态下电源系统供电能力为输入条件,以能源约束条件为边界约束条件的任务规划方法,并给出了某光学遥感卫星典型工作模式下的任务规划结果。该任务规划方法可充分利用电源系统的供电能力,实现了短期载荷工作模式的任意组合,提高了卫星的使用效能。
Traditionally,mission planning method gives short-term load working time based on the power supply capability at the end of the satellite and the worst lighting conditions,resulting in low efficiency of satellite.At first,this paper gives the energy constraint model,the charge and discharge model of the lithium-ion battery and the solar array power calculation model for the satellite in sun synchronous orbit.On this basis,a mission planning method is proposed,which takes the power system supply ability as input conditions at the time of mission execution,and the energy constraints as the boundary condition.The results of mission planning under typical working mode of EOS(earth observation satellite)which using this method are given.The mission planning method realizes any combination of short-term payload working mode and improves the efficiency of satellite.
作者
张勇
鄢婉娟
苏蛟
郝佳宁
ZHANG Yong;YAN Wanjuan;SU Jiao;HAO Jianing(DFH Satellite Co.Ltd.,Beijing 100094,China)
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
2019年第S01期1-7,共7页
Journal of Northwestern Polytechnical University
关键词
电源系统
能源约束条件
任务规划
power supply system
constraints of energy
mission planning
