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首页> 外文期刊>Mechatronics, IEEE/ASME Transactions on >Study of Nonlinear Integral Sliding Mode Fault-Tolerant Control
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Study of Nonlinear Integral Sliding Mode Fault-Tolerant Control

机译：非线性积分滑模容错控制研究

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摘要

This paper studies an active fault-tolerant control (FTC) design based on an integral sliding mode control (ISMC) strategy for a class of uncertain nonlinear systems. It is shown that under the proposed scheme, the closed-loop system can tolerate certain allowable actuator faults whenever fault detection and diagnosis information is available, and the scheme also retains the main advantages of the ISMC technique. These advantages include robustness, rapid response, and ease of implementation. Moreover, the state response of the resulting closed-loop system under normal operation and different fault conditions is predictable from the response of a preselected fault-free certain system, which can be determined by the designer. Consequently, the engineer has the flexibility in selecting an (optimal) control law for the preselected system according to the system requirements. The analytical results obtained are also applied to the attitude control of a spacecraft. The simulation results clearly demonstrate the benefits of the proposed scheme.
机译：本文针对一类不确定非线性系统，研究了基于积分滑模控制（ISMC）策略的主动容错控制（FTC）设计。结果表明，在提出的方案下，只要有故障检测和诊断信息，闭环系统就可以容忍某些允许的执行器故障，该方案还保留了ISMC技术的主要优点。这些优点包括健壮性，快速响应和易于实现。此外，根据预选的无故障某些系统的响应，可以预测设计者在正常运行和不同故障条件下所产生的闭环系统的状态响应。因此，工程师可以根据系统要求灵活地为预选系统选择（最佳）控制律。获得的分析结果也可用于航天器的姿态控制。仿真结果清楚地表明了该方案的好处。

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