基于T-S模型的双时变时滞不确定系统的鲁棒H_∞容错控制  

Robust H∞ fault-tolerant control based on T-S model of double time-varying delay uncertain system

作　　者：邵克勇[1] 张晓花[1] 李鑫[2] 陈峤郴[1] 

机构地区：[1]东北石油大学电气信息工程学院,黑龙江大庆163318 [2]大庆钻探工程公司信息中心,黑龙江大庆163458

出　　处：《计算机应用研究》2013年第5期1393-1396,共4页Application Research of Computers

基　　金：黑龙江省教育厅基金资助项目(12521057)

摘　　要：为了解决系统在含有执行器局部或者完全失效故障情况下的鲁棒H∞容错控制问题,针对一类状态和控制输入同时存在时变时滞的不确定非线性系统,采用T-S模糊模型来描述,利用并行分布补偿(PDC)算法设计了模糊状态反馈控制器,结合Lyapunov稳定性理论给出了保证该模糊容错控制系统渐近稳定的充分条件,不但保证了系统输出的鲁棒稳定性,而且能够满足给定的鲁棒H∞性能指标。最后通过MATLAB仿真对比系统中有外部干扰和无外部干扰情况下的系统输出曲线,验证了所提出方法的可行性。In order to solve robust fauh-tolerant control problem of the system containing actuator partial or complete failure of the fault cases, according to a class of state and control input both existence of time-varying delay uncertain nonlinear system, this paper adopted T-S fuzzy model to describe, designed fuzzy state feedback controller using the parallel distributed compen- sation （PDC） algorithm, researched robust H∞ fault-tolerant control problems, when the system contained actuator partial or completed failure cases. And it combined the Lyapunov stability theory was given the sufficient condition to ensure that the fuzzy fault-tolerant control system was asymptotically stable, not only to ensure that the system robust stability of the system out- put, but also to meet the given robust H∞ performance index. At last, by MATLAB simulation to compare with the system have external disturbance and there is no external interference system outputs curves, the result shows that the method is feasible.

关 键 词：鲁棒 容错 T—S模型 模糊控制器 双时变时滞 非线性系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]