基于动态反馈控制器的网络控制系统的稳定性分析

考虑实际模型的不确定性,针对一类具有不确定线性参数的网络控制系统,给出具有网络诱导时延及不确定线性参数的被控对象模型,设计其动态反馈控制器,建立基于动态反馈控制器的网络控制系统闭环模型.采用Lyapunov方法,给出保证该系统稳定的最大允许时延上界.仿真结果表明系统模型及控制器设计的合理性,所得最大允许时延上界保守性更弱.

Stability Analysis of Networked Control Systems with Dynamical Feedback Controller

Considering the actual models with uncertainties, the controlled object model with network-induced delay and uncertain linear parameters is presented aiming at the networked control system with uncertain linear parameters. Its dynamical feedback controller is designed and the corresponding closed loop form of the networked control system is established. The maximum allowable delay bound that ensures the system's stability is obtained based on the Lyapunov method. Simulation results indicate that the model and the controller proposed in this paper are reasonable and the maximum allowable delay bound given in this paper is less conservative.