卫星电源系统配置方案的优化设计

Optimization of Satellite Power System Topologies

对卫星电源系统配置方案进行优化设计是减轻电源系统质量的一条重要途径。以太阳同步轨道卫星为背景，对四种典型的直接能量传输方式（ＤＥＴ） 的电源系统配置建立了能量传递图， 推出了能量平衡方程。在此基础上， 建立了以电源系统的质量功率比最小为目标函数的优化模型； 以降交点地方时、高峰功耗与长期功耗比和光照区与星蚀区负载长期功率比为设计变量， 通过算例对这四种ＤＥＴ方式进行了优化分析比较，

Optimization of satellite power system topologies is an important way for reducing the weight.In terms of the sun synchronous orbit satellite,the energy transferring charts of four typical Direct Energy Transferring(DET)power systems are developed and the energy balance equations are derived.The optimal model is built up via minimizing the weight power ratio,which is based on the energy balance equations.An optimal analysis for the four kinds of DET power system topology is performed by taking the Descending Node Local Time,the ratio of the loads' peak energy consumption and long term energy consumption,the loads' power ratio in the orbit day and night as the design variables.An examples is calculated and the conclusions of the optimization are drawn.