摘要
为了满足皮卫星微小型化的要求,提出了一种新型卫星电源系统的设计方案.太阳电池阵-蓄电池组系统采用目前国内效率最高的三结砷化镓太阳电池阵和比容量最高的锂离子蓄电池,电源分配和变换广泛使用超低功耗工业级集成化器件,并且采用合理的筛选和测试手段保证系统可靠性.通过对太阳电池阵、蓄电池充放电和卫星负载进行建模,结合电源系统在轨运行的条件,仿真了卫星实时的能量状态,计算了在故障条件下电源系统的响应,以蓄电池容量变化作为能量平衡的判断依据.各种环境测试结果表明电源系统有效可靠,能量平衡仿真结果表明浙大皮卫星的能量策略不仅满足在轨运行条件,而且具有较强的抗故障能力.
A new design of the satellite power system was presented on demand for the micro-miniature pica-satellite. The solar-battery system adopted the triple-junction GaAs solar cell of the highest efficiency inland and the rechargeable lithium battery of the highest specific capacity, Industrial devices of large-scale integration and low consumption were widely used in the design of power conversion and distribution. Effective filtering and testing were made to guarantee the system reliability. By modeling the solar array, the battery and the load, the real-time energy state of the satellite on orbit was simulated combined with the input condition. The response under the fault condition of power system was also computed. All simulations judged the energy balance by the battery capacity variance. Kinds of environment tests prove that the power subsystem is effective and reliable. The simulation shows that the energy strategy is not only feasible but also provides a great margin of safety.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2009年第2期228-233,共6页
Journal of Zhejiang University：Engineering Science
基金
教育部新世纪优秀人才支持计划资助项目(NCET-06-051)
关键词
皮卫星
电源系统
能量平衡
可靠性
pica-satellite
power system
energy balance
reliability
