基于T-S模型的非线性网络化系统完整性设计  

Integrity design for nonlinear networked control system based on T-S model

作　　者：李炜[1] 蒋栋年[1] 刘微容[1] 

机构地区：[1]兰州理工大学电气工程与信息工程学院,甘肃兰州730050

出　　处：《华中科技大学学报（自然科学版）》2009年第S1期49-53,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：甘肃省自然科学基金资助项目(3ZS051-A25-032);甘肃省教育厅高等学校研究生导师科研资助项目(050301);兰州理工大学特色学术梯队基金资助项目(0950)

摘　　要：针对一类具有参数不确定的非线性网络化控制系统(NCS),同时考虑网络延时和丢包的影响,基于高木-关野(T-S)模糊模型建模,通过构造李亚普诺夫泛函,推证出了确保非线性网络化控制系统在执行器发生失效故障时具有鲁棒完整性的时滞依赖充分条件,并以求解矩阵不等式给出了容错控制器的设计方法.仿真算例验证了该方法的可行性和有效性.The problem of robust fault-tolerant control for a class of nonlinear networked control systems(NCSs) with parameter uncertainties is investigated in this paper.A T-S(Takagi-Sugeno) fuzzy model is employed to represent the nonlinear controlled plant in the NCSs.Both networked-induced delay and packet dropout in transmission are addressed.By using Lyapunov-Krasovskii functional,the less conservative integrity design for NCSs with failures of actuator is analyzed based on a delay-dependent approach,and the robust fault-tolerant controller gain can be obtained via solving several linear matrix inequalities(LMIs).Finally,an example is used to illustrate the effectiveness and the feasibility of the approach proposed.

关 键 词：网络化控制系统 高木-关野(T-S)模糊模型 时滞依赖 容错控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]