Design of the Station Keeping Scheme of the Lunar Relay Satellite Based on Electric Propulsion

In the design of the orbit transfer of the lunar relay satellite at the L2 point of the Earth-Moon using the electric thruster, the satellite station keeping design should not be limited to the Halo orbit under the restricted three-body model. The design of the station keeping scheme under the high-precision ephemeris model affected by the sun's gravity, the moon, and the earth's perturbation force is very important. For the above problems, using the quadratic optimal control method and the hybrid method of the optimal control algorithm, a station keeping scheme under the circular restricted three-body model will be designed. Then use it as the initial value of the quadratic optimal control, and obtain the design result of the station keeping scheme under the high-precision ephemeris model. This scheme has strong engineering practical value.