School of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz, Iran.
ISA Trans. 2019 Mar;86:153-162. doi: 10.1016/j.isatra.2018.10.034. Epub 2018 Oct 30.
This paper focuses on the problem of fault-tolerant controller (FTC) design for uncertain networked control systems (NCSs) with random delays and actuator faults. A new fault model is proposed to represent more class of actuator faults. More precisely, the NCSs with random delays and the possible actuator faults are modeled as a Markovian jump system (MJS) with incomplete transition probabilities (TPs) and then LMI-based sufficient conditions are derived to ensure the stochastic stability of the closed-loop system. The sufficient conditions are constructed to synthesize the mode-dependent static-output feedback (SOF) control laws. Feasibility and reliability of the proposed FTC against actuator faults are indicated through simulation results.
本文针对具有随机时滞和执行器故障的不确定网络控制系统（NCS）的容错控制器（FTC）设计问题进行了研究。提出了一种新的故障模型来表示更广泛类别的执行器故障。更确切地说，将具有随机时滞和可能的执行器故障的 NCS 建模为具有不完全转移概率（TP）的马尔可夫跳跃系统（MJS），然后推导出基于 LMI 的充分条件来确保闭环系统的随机稳定性。所提出的充分条件用于综合模态相关的静态输出反馈（SOF）控制律。通过仿真结果表明了所提出的 FTC 对执行器故障的可行性和可靠性。
