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针对带有时变时滞和数据包丢失的离散网络切换控制系统,提出在任意切换信号下的闭环故障检测和控制器协同设计策略;基于平均驻留时间和李雅普诺夫(LKF)方法,给出并证明离散切换时滞动态系统指数均方稳定且具有满意的H∞性能指标的充分条件;将离散网络切换时滞系统的控制器和故障检测滤波器的参数求解转化为可行的凸优化问题,确保残差和故障估计误差尽可能小.仿真实验结果验证了所提出方法的有效性.
Aiming at the discrete network switching control system with time-varying delay and packet loss, a closed-loop fault detection and controller co-design strategy with arbitrary switching signal is proposed. Based on the average dwell time and Lyapunov’s (LKF) method, And the sufficient conditions of mean square stability and satisfactory H∞ performance index for discrete-time switched-delay dynamic system are proved. The parameters of controller and fault detection filter for discrete-time switched-delay network are transformed into feasible convex optimization problem, To ensure that the residual error and fault estimation error are as small as possible.The simulation results verify the effectiveness of the proposed method.