Adaptive Nonsingular Predefined-Time Control for Attitude Stabilization of Rigid Spacecrafts

作     者：Xie, Shuzong Chen, Qiang 

作者机构：Zhejiang Univ Technol Coll Informat Engn Data Driven Intelligent Syst Lab Hangzhou 310023 Peoples R China 

出 版 物：《IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS》 (IEEE Trans. Circuits Syst. Express Briefs)

年 卷 期：2022年第69卷第1期

页      面：189-193页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：National Natural Foundation of China Ministry of Education Key Laboratory Open Project Fund [GDSC202010] 

主　　题：Attitude control Space vehicles Backstepping Circuits and systems Adaptive systems Stability analysis Convergence Predefined-time control adaptive control backstepping design attitude stabilization 

摘      要：This article proposes a novel adaptive nonsingular predefined-time control strategy for rigid spacecrafts with inertia uncertainties. Following the backstepping recursive design procedures, an adaptive attitude controller is systematically presented to ensure that the spacecraft attitude can converge into a small region around the origin within a predefined time, which can be explicitly determined in advance by assigning a simple parameter. Moreover, by designing quadratic functions in the controllers, the singularity can be avoided directly without using any filters or piecewise continuous functions, such that the stability analysis becomes more concise and straightforward. Simulations are conducted to show the effectiveness of the presented method.