基于动态输出反馈的不确定NNCS鲁棒保性能容错控制  

Dynamic output feedback-based robust performance guaranteeing fault-tolerant control of nonlinear networked control system with uncertainty

作　　者：蒋栋年[1,2] 李炜[1,2] 

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 [2]甘肃省工业过程先进控制重点实验室,甘肃兰州730050

出　　处：《兰州理工大学学报》2015年第4期83-89,共7页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(60964003);甘肃省自然科学基金(096RJZA101)

摘　　要：针对一类具有参数不确定的非线性网络化控制系统,同时考虑网络延时和丢包的影响,采用动态输出反馈控制策略,基于T-S模糊模型建模,在对时延分段处理的情形下,推证出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容错保性能的时滞依赖充分条件,并以求解LMIs的方式给出控制器的设计方法.由于证明引入了适当的自由权矩阵变量,特别是时延的分段处理,使所得结果具有较少保守性.最后以一个仿真算例验证文中所述方法的可行性和有效性.Aimed at a class of nonlinear networked control system with parameter uncertainty, taking the influence of both network-induced time-delay and packet dropout into account, and based on T-S fuzzy modelling, the delay-dependent sufficient condition is derived with piecewise time-delay and dynamic output feed pack for this control system, so that its robust fault-tolerant performance will be guaranteed when the actuator fails, and a method for controller design is given out by means of LMIS solution. Because of the introduction of an appropriate slack matrix variable into foregoing derivation and, especially, the piecewise treatment of the time-delay, the result is made of less conservation Finally, the feasibility and effec- tiveness of foregoing method is verified by means of a simulative computation example.

关 键 词：网络化控制系统 T-S模糊模型 保性能控制 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]