论文摘要
In this paper, the attitude tracking control problem for a rigid spacecraft in the presence of system parameter uncertainties and external disturbances is addressed. First, a new nonsingular finite-time sliding surface is introduced and third-order sliding mode finite-time attitude control law is designed to achieve precise accurate tracking responses and robustness against inertia uncertainties and external disturbances.The stability of the closed-loop system is rigorously proved using the Lyapunov stability theory. Then, a new finite-time extended state observer is established to estimate total disturbances of the system. The extended stated observer-based sliding mode control technique yields improved disturbance rejection and high-precision attitude tracking. Moreover, this control law can avoid the unwinding phenomenon and overcome the input saturation constraint by introducing an auxiliary variable to compensate for the overshooting. A Lyapunov based analysis is provided to guarantee sufficiently small observation error and stabilization of the closed-loop system in finite time. Numerical simulations are conducted to verify the effectiveness of the proposed control method.
论文目录
文章来源
类型: 期刊论文
作者: Chutiphon PUKDEBOON
来源: Science China(Information Sciences) 2019年01期
年度: 2019
分类: 信息科技,工程科技Ⅱ辑
专业: 航空航天科学与工程
单位: Department of Mathematics, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok
基金: supported by King Mongkut’s University of Technology North Bangkok and Thailand Research Fund (TRF) (Grant No. RSA6080043)
分类号: V448.2
页码: 148-163
总页数: 16
文件大小: 1303K
下载量: 63