基于联合供电的GEO卫星电推进工作策略

针对电推进系统高功率需求，以整星能源的高效利用为目标，以电推力器的复杂工程参数和整星能源为约束，提出基于太阳电池阵和蓄电池组联合供电的静止轨道卫星电推进在轨工作策略，定量分析不同电推进类型、太阳翼构型、电源系统配置等对工作策略的影响，得到复杂工程约束条件下的南北位保、东西位保和角动量卸载控制周期的优选方法.仿真算例表明，在留有工程设计余量的情况下，根据该方法优选得到的电推进工作策略可以满足电推进系统的使用要求和整星能源平衡要求，与采用增大太阳帆板面积的方法相比，可避免卫星平台承重能力降低（约60 kg），并提高整星能源利用率.

Work Strategies of Electric Propulsion Systems of GEO Satellites Based on Joint Power Supply

Abstract：Electric propulsion systems have huge power demands. To raise the utilization efficiency of satellite resources, work strategies of electric propulsion systems are proposed based on joint power supply from solar cells and batteries with complex engineering constrains. The impact analysis of different kinds of electric propulsions, different configurations of solar panels and power supply systems are introduced to obtain the optimization strategy during the periods of north south station keeping(NSSK), east west station keeping(EWSK) and momentum unloading(MU). Finally, simulation examples validate that reasonable work strategies can be achieved to meet the high power demands of the electric propulsion under complex engineering constrains and suitable design margin.