碳纤维角联织机网络控制系统H_∞状态观测器设计

Design of H_∞ State Observer for Network Control System of Carbon Fiber Multilayer Diagonal Loom

针对一类存在不确定时延的网络控制系统,该文提出了一种H∞状态观测器的设计方法。在考虑时延小于等于一个采样周期时的情况,将状态反馈网络控制系统建模为具有不确定性的离散时变系统,并建立了基于状态观测器的网络控制系统。根据Lyapunov稳定性理论,结合Matlab中的LMI工具箱进行可行性分析,得到了H∞状态观测器的设计方法,并验证其鲁棒稳定性。最后,以碳纤维角联织机为例进行仿真,验证了所设计状态观测器的可行性和鲁棒性。

A design method of H∞state observer is proposed for a class of networked control systems with uncertain time delays. Considering the case that the delay is less than or equal to one sampling period,the state feedback network control system is modeled as a discrete time-varying system with uncertainty,and a networked control system based on state observer is established. According to the Lyapunov stability theory,combined with the LMI toolbox in Matlab,the design method of H∞state observer is obtained,and its robust stability is verified. Finally,the carbon fiber multilayer diagonal loom is taken as an example to verify the feasibility and robustness of the designed state observer.