Optimal Mission Planning of On-Orbit Layered Refueling for Multiple Noncoplanar GEO Satellites
Regarding the planning of on-orbit refueling tasks for spacecraft in geosynchronous orbit(GEO),an on-orbit refueling strategy based on hierarchical refueling is proposed,which can effectively im-prove the refueling efficiency compared with the traditional"one-to-many"refueling method.In the pro-posed hierarchical on-orbit refueling strategy,a sub-service spacecraft(SSc)is defined to jointly accomplish the on-orbit refueling task with the primary service spacecraft(PSSc).On the basis of this,the spacecraft orbital transfer model based on the multi-turn Lambert orbital transfer,the relationship between orbital ma-neuvering speed increment and transfer time is obtained,and the fuel cost and transfer time of spacecraft or-bital transfer are taken as the objective function under consideration of the constraints such as spacecraft load and mission time,and the spacecraft refueling sequence and orbital transfer time are optimally solved by u-sing an improved genetic algorithm.Finally,the effectiveness of the theory is verified through numerical simulation.
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维普
