Partial attitude stabilization underactuated control with disturbance observers for post-captured space robot
Partial attitude stabilization underactuated control with disturbance observers for post-captured space robot
复制标题
捕获后空间机器人的扰动观测器部分姿态稳定欠驱动控制
DOI:
10.1016/j.jfranklin.2020.03.014
复制
发表时间:
2020-05
期刊:
影响因子:
--
通讯作者:
Qiu Li
中科院分区:
文献类型:
--
作者:
Chen Shiyu;Zhang Bo;Yan Peiguang;Wang Zheng;Yuan Jianping;Qiu Li
In this study, a takeover controller is proposed for a post-captured space robot with the underactuated property under the effect of unknown environmental disturbances and the gravitational gradient moment. The (w, z) parameter is introduced to describe the attitude, and an extended kinematics is derived by the additional consideration of the orbital motion of the space robot. To eliminate the effect of disturbances on the underactuated axis, two disturbance observers is proposed for the actuated axes and underactuated axis. Based on the extended kinematics and the observers, a kinematic controller is applied to stabilize the attitude. Moreover, a dynamic controller is derived to achieve the partial stabilization of the post-captured space robot around the specific axis. The convergences of the controllers are proven. The simulation results show that the state variables converge to demand values, and the angular velocity of the underactuated axis maintains at a constant value.
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影响因子:
5.6
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影响因子:
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DOI:
10.1109/cdc.2016.7799141
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期刊:
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