This paper presents an indirect estimation based active disturbance rejection control (ADRC) for solar sail station-keeping. In contrast to previous applications of ADRC to spacecraft station-keeping the proposed approach estimates the deviation of the orbit state from the reference orbit, instead of estimating the orbit state directly. Since the deviation of the orbit state varies more slowly than the state itself, the indirect estimation significantly improves the estimation accuracy and hence the station-keeping performance. Moreover, this approach enables a large control time step which is two orders of magnitude larger than those in previous applications. This is beneficial to the implementation of attitude control and power consumption in practice. In addition, errors in the optical properties of the solar sail are taken into account which is a major challenge for solar sail station-keeping that has not been considered in previous station-keeping control design. The simulation results show that the presented ADRC station-keeping is robust to errors in these optical properties.

本文提出了一种用于太阳帆站保持的基于间接估计的自抗扰控制（ADRC）。与之前将 ADRC 应用于航天器站保持相比，所提出的方法估计轨道状态与参考轨道的偏差，而不是直接估计轨道状态。由于轨道状态的偏差比状态本身变化得更慢，间接估计显着提高了估计精度，从而提高了站位保持性能。此外，这种方法可以实现比以前应用程序大两个数量级的大控制时间步长。这有利于在实践中实现姿态控制和功耗。此外，考虑了太阳帆光学特性的误差，这是以前的站位控制设计中没有考虑到的太阳帆站位保持的主要挑战。仿真结果表明，所提出的 ADRC 站位保持对这些光学特性中的误差具有鲁棒性。