Time-Varying Sliding Mode Control for Spacecraft Attitude Tracking Maneuvers with a Quadratic Cost
In this paper, the problem of spacecraft attitude tracking maneuvers in the presence of parametric uncertainty and external disturbance is addressed. A time-varying sliding mode controller with an exponential time-varying sliding surface is presented. The attitude of spacecraft is represented by modi.ed Rodrigues parameters for the non-redundancy. The proposed control algorithm eliminates the reaching phase of conventional time-invariant sliding mode control and guarantees the sliding mode occurrence all the time. This property indicates that the controller is global robust against matched parametric uncertainty and external disturbance. Additionally, the control parameter is adjusted to minimize a given quadratic cost. Finally, a numerical simulation is employed to verify the proposed control algorithm.
CONG Binglong LIU Xiangdong CHEN Zhen XIA Yongjiang
School of Automation, Beijing Institute of Technology, Beijing 100081, P.R.China Shanghai Key Laboratory of Science and Technology on Space Intelligent Control, Shanghai 200233, P.R
国际会议
The 30th Chinese Control Conference(第三十届中国控制会议)
烟台
英文
1-6
2011-07-01（万方平台首次上网日期，不代表论文的发表时间）