Controller or actuator failure analysis for systems with time-varying delay
Controller or actuator failure analysis for systems with time-varying delay
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DOI：
10.1109/cdc.2007.4434320
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发表时间：
2007-12
期刊：
影响因子：
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通讯作者：
Ximing Sun;Guoping Liu;D. Rees;Wei Wang
中科院分区：
文献类型：
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作者：
Ximing Sun;Guoping Liu;D. Rees;Wei Wang
研究了一类时变时滞系统的致动器或控制器失效问题。假设一旦执行器或控制器失效，系统将变得不稳定。它解决了故障的持续时间和频率，以便系统能够保持指数级稳定。基于切换方法，将这类故障问题转化为寻找切换信号来稳定相应的切换延迟系统的问题。然后利用平均停留时间法，导出了在致动器或控制器失效时保证指数稳定性的充分条件。算例验证了该方法的有效性。
This paper studies the problem of actuator or controller failure of a class of time-varying delay systems. It is assumed once the actuator or controller fails, the system becomes unstable. It addresses how long and how frequent the failure is so that the system can keep exponentially stable. Based on a switching method, this kind of failure problems is converted into one of finding a switching signal to stabilize the corresponding switched delay system. Then using average dwell time method, the sufficient conditions guaranteeing exponential stability are derived in the case of actuator or controller failure. A numerical example is used to show the effectiveness of the proposed method.