NONLINEAR CONTROL OF ROTATING MULTI-TETHERED FORMATIONS IN HALO ORBITS
NONLINEAR CONTROL OF ROTATING MULTI-TETHERED FORMATIONS IN HALO ORBITS
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DOI：
10.1142/s0219876213440088
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发表时间：
2014-12
影响因子：
1.7
通讯作者：
Zhiqin Cai;Jun Zhao;Haijun Peng;Zhaohui Qi
中科院分区：
文献类型：
--
作者：
Zhiqin Cai;Jun Zhao;Haijun Peng;Zhaohui Qi
本文研究在Halo轨道上旋转的多绳系卫星编队的非线性轨道跟踪控制问题。首先将动力学公式应用于以轮毂-辐条配置布置的旋转多系绳编队。在此基础上，提出了一种新的非线性最优跟踪控制方法，使母卫星稳定在预定的轨道上。数值仿真结果表明了该非线性控制器的有效性。结果表明，在初始注入误差和子星摄动的影响下，母卫星的实际轨道跟踪标称Halo轨道具有较好的精度。此外，控制加速度和控制的总燃料成本可以相当合理。此外，为了证明非线性控制器的鲁棒性，改变了一些影响控制代价的相关参数。
In this paper, we consider the nonlinear orbit tracking control of rotating multi-tethered satellite formations in Halo orbits. A dynamical formulation is first applied for a rotating multi-tethered formation arranged in a hub-spoke configuration. Then, a new nonlinear optimal tracking control method is proposed for the stabilization of the parent satellite to follow the predefined trajectory. Numerical simulations illustrating the effectiveness of the nonlinear controller are presented. The results show that the actual trajectory of the parent satellite tracks the nominal Halo orbit with good accuracy under the influence of initial injection errors and the perturbations of subsatellites. In addition, the control acceleration and the total fuel cost of the control can be quite reasonable. Furthermore, a number of the relevant parameters that affect the control costs are varied in order to demonstrate the robustness of the nonlinear controller.