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Adaptive and Supertwisting Adaptive Spacecraft Orbit Control Around Asteroids

机译：自适应和超级驾驶自适应航天器轨道控制小行星

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This paper addresses the development of control systems for the orbit control of spacecraft around irregularly shaped rotating asteroids with uncertain parameters. The objective is to steer the spacecraft along prescribed orbits. First, a nonlinear adaptive law for orbit control was designed. This was followed by the design of a supertwisting adaptive (STWA) control system. In the closed-loop system, which includes the adaptive law or the STWA law, all the signals remain bounded, and the trajectory tracking error asymptotically converges to zero for any initial condition. Finally, under the assumption of boundedness of the derivative of the uncertain functions of the model in a region of the state space, a supertwisting control (STW) law for finite-time convergence of the trajectory was obtained. Based on the Lyapunov theory, stability properties of the closed-loop systems were analyzed. Simulation results for 433 Eros and Ida asteroids were presented for illustration. The results showed that control of spacecraft along closed orbits or to a fixed point is accomplished using each of these controllers, despite uncertainties in the parameters of the asteroid models. (c) 2019 American Society of Civil Engineers.
机译：本文涉及具有不确定参数的不规则形状旋转小行星的航天器轨道控制的控制系统的开发。目标是沿着规定的轨道操纵航天器。首先，设计了一种用于轨道控制的非线性自适应法。然后是设计超级驾驶自适应（STWA）控制系统的设计。在包括自适应法或STWA定律的闭环系统中，所有信号保持有界，并且轨迹跟踪误差渐近地会聚为任何初始条件的零。最后，在状态空间区域中模型的不确定功能的衍生物的衍生度的界限的假设，获得了用于有限时间收敛的超级驾驶控制（STW）法。基于Lyapunov理论，分析了闭环系统的稳定性。展示了433个EROS和IDA小行星的仿真结果。结果表明，尽管小行星模型的参数中的不确定性，但是使用这些控制器的每个控制器控制沿着闭合轨道或固定点的控制。 （c）2019年美国土木工程学会。

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  • 来源
    《Journal of aerospace engineering》 |2019年第4期|04019042.1-04019042.14|共14页
  • 作者

    Lee Keum W.; Singh Sahjendra N.;

  • 作者单位

    Catholic Kwandong Univ Dept Elect Engn Gangwon 25601 South Korea;

    Univ Nevada Dept Elect & Comp Engn Las Vegas NV 89154 USA;

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