Abstract: 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.

Key words: electric propulsion, joint power supply, work strategies, NSSK, EWSK, momentum unloading