轧机厚控系统时滞相关鲁棒容错H∞控制器设计

研究了轧机厚控系统时滞相关鲁棒容错控制问题.轧机厚控系统实际足一个线性不确定时滞系统,考虑其可能发生的执行器增益故障,利用Lyapunov-Krasovskii泛函方法和线性矩阵不等式,给出了厚控系统时滞相关鲁棒容错控制器存在的充分条件,并给出了控制器的设计方法.所获得的控制器不仅能使故障系统鲁棒稳定,并且能达到给定的...

Design of delay-dependent robust fault-tolerant H∞ controller for thickness control system of strip mill

The problem of delay-dependent robust fault-tolerant control for the thickness control system of strip mill is
studied. The practical thickness control system of strip mill is a linear uncertainty time-delay system. The possible actuator
gain faults are considered, and the sufficient conditions for the existence of delay-independent robust fault-tolerant controller
are given by using Lyapunov-Krasovskii functional method and linear matrix inequality(LMI). Then the corresponding design
methods of the controllers are proposed. The proposed controller not only enables the system to keep robust stabilization, but
also achieves the given ??∞ performance. Finally, a simulation experiment shows the effectiveness of the proposed approach.