Robust gain scheduled control of spacecraft rendezvous system subject to input saturation

Robust gain scheduled control of spacecraft rendezvous system subject to input saturation
复制标题

受输入饱和影响的航天器交会系统的鲁棒增益预定控制

DOI:
10.1109/chicc.2014.6895643
复制
发表时间:
2014
影响因子:
5.6
通讯作者:
Duan, Guang-Ren
Duan, Guang-Ren
中科院分区:
工程技术1区
文献类型:
--
作者:
Zhou, Bin;Zhou, Bin;Duan, Guang-Ren;Duan, Guang-Ren

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研究了输入饱和条件下航天器圆形轨道交会系统的鲁棒控制问题。基于C-W方程建立了含有线性化误差和饱和非线性引起的参数不确定性的相关模型。将参数Riccati方程与现有的增益调度技术相结合,提出了一种新的鲁棒增益调度控制器来解决鲁棒控制问题。通过在线调度设计参数,可以提高状态的收敛速度。利用所设计的控制器,成功实现了航天器的轨道交会。数值仿真结果表明了该方法的有效性。
The problem of robust control of spacecraft circular orbit rendezvous system subject to input saturation is studied in this paper. The relative model with parameter uncertainties caused by linearization error and saturation nonlinearity is established based on C-W equation. By combining the parametric Riccati equation and the existing gain scheduling technique, a new robust gain scheduling controller is proposed to solve the robust control problem. By scheduling the design parameters online, the convergence rate of the state can be improved. With the designed controller, the spacecraft orbit rendezvous is accomplished successfully. Numerical simulations show the effectiveness of the proposed approach.
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