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Reliable H control for an uncertain nonlinear discrete-time system with multiple intermittent sensor faults

机译:具有多个间歇性传感器故障的不确定非线性离散时间系统的可靠 H 控制

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This paper focuses on the passive fault-tolerant control problem for a class of uncertain nonlinear discrete-time systems subject to multiple intermittent faults. The multiple intermittent faults considered occur on the actual measurement signals in the form of additive faults. To achieve the aim of fault-tolerant control, a dynamic output-feedback controller is designed such that, in the simultaneous presence of parameter uncertainty, a given type of nonlinearity, and multiple additive intermittent sensor faults, the closed-loop system remains stable and guarantees acceptable performance. The linear matrix inequality technique is used to obtain sufficient conditions to derive the controller and ensure that the prescribed H ∞ index is satisfied. Finally, the effectiveness of the proposed method is demonstrated though a numerical simulation example.
机译:本文针对一类具有多个间歇性故障的不确定非线性离散时间系统,研究了被动容错控制问题。所考虑的多个间歇故障以累加故障的形式出现在实际测量信号上。为了实现容错控制的目的,设计了动态输出反馈控制器,使得在参数不确定性,给定类型的非线性以及多个附加间歇传感器故障同时存在的情况下,闭环系统保持稳定,并且保证可接受的性能。线性矩阵不等式技术用于获得足够的条件来推导控制器,并确保满足规定的H∞指数。最后,通过数值仿真实例验证了该方法的有效性。

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