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针对一类具有时变时延和丢包的参数不确定网络化控制系统,采用动态输出反馈策略,在未对系统模型进行增广重建的情形下,通过构造适当的Lyapunov-Krasovskii泛函,推出了确保闭环系统在执行器失效情况下具有鲁棒完整性的时滞相关充分条件,进而借助于矩阵分离引理,求解线性矩阵不等式的方式,并给出了控制器的设计方法.由于模型中考虑了时延下界,且证明过程未进行模型转换、交叉项放大,加之适当自由权矩阵变量的引入及时延的分段处理,因此其结果具有较少保守性.仿真示例验证了所述方法的有效性.
Aiming at a class of uncertain parameterized networked control systems with time-varying delay and packet loss, the dynamic output feedback strategy is adopted. Without the augmented reconstruction of the system model, an appropriate Lyapunov-Krasovskii functional is introduced In order to ensure sufficient conditions for the closed-loop system to have robust integrity with time-delay under actuator failure conditions, the way to solve the linear matrix inequality by matrix separation lemma is given and the controller design method is given. Considering the lower bound of delay, the results show that the proposed method has less conservativeness, and it is proved that the model is not transformed, the cross-terms are enlarged, and the introduction of appropriate free-weights matrix variables and delay is applied. Effectiveness.