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Fault-Tolerant Control for Discrete Linear Systems with Consideration of Actuator Saturation and Performance Degradation

机译：考虑执行器饱和和性能下降的离散线性系统的容错控制

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This paper proposes an active fault-tolerant control method for discrete-time linear systems with actuator faults. The main contribution of this paper lies in the capability of dealing with the actuator saturation and accepting the performance degradation. In this paper, a fault estimation observer is first designed by constructing an equivalent descriptor system model of the original plant. To accept performance degradation of the post-fault system, a degradation factor is introduced into the REFERENCE model. In the fault-tolerant control design, both the actuator saturation and performance degradation are considered, and the fault-tolerant control input and the degradation factor are simultaneously designed by solving a constrained optimization problem. Finally, an aircraft example is simulated to demonstrate the effectiveness and performance of the proposed method.
机译：针对具有执行器故障的离散时间线性系统，提出了一种主动容错控制方法。本文的主要贡献在于应对执行器饱和并接受性能下降的能力。在本文中，首先通过构建原始工厂的等效描述符系统模型来设计故障估计观测器。为了接受故障后系统的性能降级，将降级因数引入到REFERENCE模型中。在容错控制设计中，要同时考虑执行器的饱和度和性能下降，并通过解决约束优化问题来同时设计容错控制输入和下降因子。最后，仿真飞机实例以证明所提方法的有效性和性能。

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