Reliable Gain Scheduling Output Tracking Control for Spacecraft Rendezvous
Reliable Gain Scheduling Output Tracking Control for Spacecraft Rendezvous
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DOI：
10.1007/s12555-016-0678-2
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发表时间：
2018-02
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影响因子：
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通讯作者：
Qian Wang;A. Xue
中科院分区：
文献类型：
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作者：
Qian Wang;A. Xue
提出了一种基于参数Lyapunov方程的航天器交会导引相位离散增益调度输出跟踪控制方法。考虑执行器饱和、输出跟踪和推进器效能的部分损失，建立了基于C-W方程的相对动力学模型，将轨道转移控制问题转化为稳定问题。所提出的增益调度方法是通过逐步增加引入的参数来提高状态收敛速度，并消除推进器效能部分损失的影响。为了得到所设计的控制器，我们只需要解一个非线性方程。数值仿真验证了该方法的有效性和实用性。
This paper has proposed a discrete gain scheduling output tracking control method for the homing phase of the spacecraft rendezvous based on the parametric Lyapunov equation. Considering the actuator saturation, output tracking and the partial loss of thruster effectiveness, we establish a relative dynamic model based on C-W equation and transform the orbital transfer control problem into a stabilization problem. The proposed gain scheduling approach is to improve the state convergence rate by increasing the introduced parameters gradually and remove the affect of the partial loss of thruster effectiveness. To obtain the designed controller, we only need to solve a nonlinear equation. Numerical simulations illustrate the usefulness and effectiveness of the proposed method.