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Peer reviewed
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Chen, Xiangjia; Yuan, Ranhui; Zhu, Jingxian; Liu, Chang; Li, Jing; Li, Qingjun
Advances in space research, 06/2023, Volume: 71, Issue: 12Journal Article
•A new Free-Drift Solar Power Satellite concept is proposed.•Large amount of fuel is saved because of the free-drift orbit and attitude.•Symmetric layout is adopted to reduce attitude disturbance.•Two transmitting antennas are used to reduce the total length of cables. Solar power satellite is known as a promising source of clean energy from space in the future. One of the key problems of current solar power satellite concepts is the huge cost because of the excessively large mass and fuel consumption. The objective of this paper is to propose a new Free-Drift Solar Power Satellite concept that reduce mass and fuel consumption. Firstly, Sun-frozen orbit in geosynchronous Laplace plane and quasi-Sun-pointing attitude are designed to significantly save orbital and attitude control fuel. To this end, an orbit-attitude coupled modelling method considering space perturbations is proposed for multibody systems. Orbital and attitude dynamics and control are studied to substantiate the orbit and attitude design. Secondly, two transmitting antennas and three solar arrays are adopted and allocated elaborately to reduce structural deformations and attitude disturbance. The mass of the transmitting cables from solar arrays to transmitting antennas is also reduced by the proposed layout. Finite element analysis is performed to validate the design of supporting structures. Finally, other subsystems are briefly introduced and the system parameters are summarized.
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