基于特征模型的Halo轨道维持控制

doi:10.7527/S1000-6893.2019.23206

Abstract

Abstract: Orbits around libration points have a key value in future deep space explorations. However, due to the instability of libration points, explorers that are running on the orbits around them will, if without control, deviate at a high speed. As a result, station-keeping is essential in practical missions. To solve the station-keeping problem of the periodical Halo orbits around Earth-Moon L₂ point, a baseline orbit was obtained through Richardson three-order analytical solution, differential correction, and target shooting strategy. Then, a characteristic model-based golden-section controller was designed for velocity tracking and a PD controller was designed for position tracking. Finally, simulations were conducted under restricted three-body model and bicircular restricted four-body model. Results show that, under both circumstances, the tracking accuracy was better than 100 m in position and 0.003 m/s in velocity, while the controller consumption of bicircular restricted four-body model was an order of magnitude higher than that of the restricted three-body model.

Key words: libration points, Halo orbits, station-keeping, characteristic model, golden-section controller, PD controller

CLC Number:

V448.21

ZHANG Bin, ZHOU Jing. Characteristic model-based station-keeping control for Halo orbit[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019, 40(11): 323206-323206.

References 24

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Characteristic model-based station-keeping control for Halo orbit

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