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Nonlinear Station-Keeping Control in the Vicinity of the Sun-Earth L-2 Point Using Solar Radiation Pressure

机译:利用太阳辐射压力对日地L-2点附近的非线性驻车控制

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摘要

The use of solar radiation pressure for station-keeping at a sub-L-2 Sun-Earth/Moon collinear libration point is presented. Numerical halo and Lissajous reference trajectories are generated for the sub-L-2 libration point. Owing to the instability of these orbits, active station-keeping is required to prevent spacecraft escape after orbit insertion. The control inputs for solar sail control include area variation and solar sail pitch and roll angle variations. A nonlinear higher order control method is developed to utilize solar radiation pressure to minimize the trajectory tracking error. The stability of the proposed controllers is established using the Lyapunov theory. The performance of the proposed controllers is tested through numerical simulation of the governing nonlinear equations of motion and is applied for station-keeping in the elliptical restricted three-body problem. It is shown that underactuated control is able to keep the spacecraft motion bounded, but the tracking error remains high. The fully actuated control is able to provide accurate station-keeping for both halo and Lissajous trajectories. The numerical results demonstrate the effectiveness of the proposed control technique for precise station-keeping using solar radiation pressure at a sub-L-2 libration point. (C) 2015 American Society of Civil Engineers.
机译:提出了利用太阳辐射压力保持在L-2以下的太阳地球/月亮共线解放点。为次L-2释放点生成了数值光环和李沙育参考轨迹。由于这些轨道的不稳定性,需要主动保持站位以防止航天器在插入轨道后逃逸。太阳帆控制的控制输入包括面积变化以及太阳帆俯仰和侧倾角变化。开发了一种非线性高阶控制方法,以利用太阳辐射压力来最小化轨迹跟踪误差。所提出的控制器的稳定性是使用李雅普诺夫理论建立的。所提出的控制器的性能通过控制运动的非线性方程的数值模拟进行了测试,并用于椭圆约束三体问题中的位置保持。结果表明,欠驱动控制能够使航天器的运动保持有界,但是跟踪误差仍然很高。完全致动的控制能够为光晕和李沙育轨迹提供精确的定位。数值结果证明了所提出的控制技术对于在L-2释放点以下的太阳辐射压力进行精确站址保持的有效性。 (C)2015年美国土木工程师学会。

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  • 来源
    《Journal of aerospace engineering》 |2016年第3期|04015073.1-04015073.13|共13页
  • 作者单位

    Blackbridge, D-10719 Berlin, Germany;

    Ryerson Univ, Dept Aerosp Engn, 350 Victoria St, Toronto, ON M5B 2K3, Canada;

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