Purpose

This paper aims to address the spacecraft attitude regulation problem in the presence of extrinsic disturbances and actuator faults.

Design/methodology/approach

Based on adaptive backstepping design technique, a new concise adaptive dual-mode control scheme is proposed, which can either use the fault information detected by fault diagnosis mechanisms or switch to the fault-unknown mode when the fault diagnosis information is non-existent for control signal generation. These two modes share an adaptive mechanism that reduces the complexity of the algorithm.

Findings

The new fault-tolerant attitude control algorithm can accommodate both modes with and without fault diagnosis mechanisms.

Originality/value

The proposed algorithm in this paper can be applied to both cases when the attitude control system is equipped with or without fault diagnosis capability. This also enhances the robustness of attitude control algorithm. This study performs numerical simulations and verifies that the algorithm could effectively adapt to both modes.

中文翻译：

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航天器姿态调节的容错控制：一种简洁的自适应双模方案

目的

本文旨在解决存在外在干扰和执行器故障的航天器姿态调节问题。

设计/方法/方法

基于自适应反步设计技术，提出了一种新的简洁自适应双模控制方案，既可以利用故障诊断机制检测到的故障信息，也可以在故障诊断信息不存在时切换到故障未知模式进行控制。信号生成。这两种模式共享一个自适应机制，降低了算法的复杂度。

发现

新的容错姿态控制算法可以适应有和没有故障诊断机制的两种模式。

原创性/价值

本文提出的算法适用于姿态控制系统具有或不具有故障诊断能力的两种情况。这也增强了姿态控制算法的鲁棒性。本研究进行了数值模拟，并验证了该算法可以有效地适应这两种模式。