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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2020, Vol. 41 ›› Issue (S2): 724291-724291.doi: 10.7527/S1000-6893.2020.24291

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Orbit and attitude control design for film solar sailcrafts on geosynchronous orbit

WU Yunli1,2, ZHAO Tianyi3, ZUO Huaping4, MENG Bin1,2   

  1. 1. Beijing Institute of Control Engineering, Beijing 100190, China;
    2. Key Laboratory of Space Intelligent Control Technology, Beijing 100190, China;
    3. Center for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin 150001, China;
    4. Key Laboratory of Vacuum Technology and Physics, Lanzhou Institute of Space Technical Physics, Lanzhou 730000, China
  • Received:2020-05-26 Revised:2020-05-29 Published:2020-06-12
  • Supported by:
    National Key Research and Development Program (2018YFA0703800); The Foundation of Key Laboratory of Space Intelligent Control Technology (ZDSYS-2018-04)

Abstract: The film solar sailcraft (FSS) with variable reflectivity is a huge flexible spacecraft capable of propulsion, electric power generation, and attitude and orbit control. The FSS can generate force and torque for attitude and orbit control via varying film reflectivity. In this paper, the orbit drifting motion is analyzed according to the force characteristics of the FSS on the geostationary orbit, and the dynamics model and force and torque model of variable film reflectivity for the FSS are built respectively. Based on the proposed models, an orbit correction method is presented to change the attitudes of the FSS. A stable and reliable attitude control method with double momentum wheels fixed in the plane of the FSS is also proposed. The momentum accumulation of the wheels for attitude control can be unloaded by the solar torque produced from variable film reflectivity. The mathematical simulations show that the proposed methods are reasonable and fit for engineering applications, enabling the FSS to work at a fixed longitude position over a long period of time.

Key words: film solar sailcraft, geosynchronous orbits, attitude and orbit control, super large flexible spacecraft, film reflectivity

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