arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.07001eess.SYcs.SY
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刚性航天器的抗解绕滑模姿态机动控制

Anti-Unwinding Sliding Mode Attitude Maneuver Control for Rigid Spacecraft

Rui-Qi Dong, Ai-Guo Wu, Ying Zhang

摘要:

研究了刚体航天器的姿态机动控制问题。首先,为了避免当系统状态被限制在切换面时的解旋现象,利用双曲正弦函数构造了一种新的切换函数,使得切换面包含两个平衡点。然后,基于所构造的切换函数设计了滑模姿态机动控制器,以保证闭环姿态机动控制系统对干扰的鲁棒性。姿态控制律的另一个重要特点是引入了一个动态参数,以保证在系统状态到达切换面之前具有抗退绕性能。仿真结果表明,采用新构造的切换函数和姿态控制方案,解决了刚体航天器姿态机动过程中的解绕问题。

英文摘要:

In this paper, anti-unwinding attitude maneuver control for rigid spacecraft is considered. First, in order to avoid the unwinding phenomenon when the system states are restricted to the switching surface, a novel switching function is constructed by hyperbolic sine functions such that the switching surface contains two equilibriums. Then, a sliding mode attitude maneuver controller is designed based on the constructed switching function to ensure the robustness of the closed-loop attitude maneuver control system to disturbance. Another important feature of the developed attitude control law is that a dynamic parameter is introduced to guarantee the anti-unwinding performance before the system states reach the switching surface. The simulation results demonstrate that the unwinding problem is settled during attitude maneuver for rigid spacecraft by adopting the newly constructed switching function and proposed attitude control scheme.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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