Velocity-free fixed-time attitude tracking fault-tolerant control for rigid spacecraft based on the homogeneity method

IF 1 4区工程技术 Q3 ENGINEERING, AEROSPACE

Proceedings of the Institution of Mechanical Engineers Part G-Journal of Aerospace Engineering Pub Date : 2024-04-27 DOI:10.1177/09544100241249882

Zheng Yin, Zhang He, Wang Yan

引用次数: 0

Abstract

This paper examines the problem of fixed-time attitude tracking fault-tolerant for rigid spacecraft without angular velocity measurement, in the presence of uncertainties, external disturbances, and actuator faults. First, a fixed-time observer is established to obtain accurate estimates of the unmeasurable angular velocities, by applying a fixed-time observer, a fixed-time tracking control method is addressed to enable the tracking spacecraft to track the target spacecraft with time-varying attitude in a fixed time. A fixed-time output feedback attitude tracking controller is designed and the fixed time stability of the system is proved. In addition, the simulation results verify the effectiveness of the proposed control strategy.

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基于同质性方法的刚性航天器无速度固定时间姿态跟踪容错控制

本文研究了在存在不确定性、外部干扰和致动器故障的情况下，无角速度测量的刚性航天器的固定时间姿态跟踪容错问题。首先，建立一个固定时间观测器来获得不可测角速度的精确估计值，通过应用固定时间观测器，解决固定时间跟踪控制方法，使跟踪航天器在固定时间内跟踪具有时变姿态的目标航天器。设计了一种固定时间输出反馈姿态跟踪控制器，并证明了系统的固定时间稳定性。此外，仿真结果验证了所提控制策略的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers Part G-Journal of Aerospace Engineering 工程技术-工程：机械

CiteScore

2.40

自引率

18.20%

发文量

212

审稿时长

5.7 months

期刊介绍： The Journal of Aerospace Engineering is dedicated to the publication of high quality research in all branches of applied sciences and technology dealing with aircraft and spacecraft, and their support systems. "Our authorship is truly international and all efforts are made to ensure that each paper is presented in the best possible way and reaches a wide audience. "The Editorial Board is composed of recognized experts representing the technical communities of fifteen countries. The Board Members work in close cooperation with the editors, reviewers, and authors to achieve a consistent standard of well written and presented papers."Professor Rodrigo Martinez-Val, Universidad Politécnica de Madrid, Spain This journal is a member of the Committee on Publication Ethics (COPE).