Design of observer and dynamic output feedback fault tolerant controller based on T-S fuzzy model

被引：2

作者：

Zhu F. ^{[1
]}

Jiang P. ^{[1
]}

Li X. ^{[1
]}

机构：

[1] School of Electronics and Information Engineering, Tongji University, Shanghai

来源：

Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2016年 / 50卷 / 09期

关键词：

Actuator fault reconstruction; Adaptive observer; Fault tolerant control; Sensor fault reconstruction; T-S fuzzy model;

D O I：

10.7652/xjtuxb201609015

中图分类号：

学科分类号：

摘要：

For the nonlinear systems with actuator and sensor faults, the design methodology of observer and dynamic output feedback controller based on T-S fuzzy model was discussed. Firstly, the nonlinear system was transformed into T-S fuzzy model. Then, taking the T-S fuzzy model as the design model, and extending the sensor faults to an auxiliary state to obtain an augmented T-S fuzzy descriptor system, a fuzzy adaptive observer was designed to achieve the simultaneous estimations of the states, the actuator faults and the sensor faults of the nonlinear system. In addition, the dynamic output feedback fault tolerant controller was designed to achieve the purpose of fault tolerance control based on the observer and estimate the sensor fault and actuator fault. Meanwhile, the sufficient conditions for the existence of the observer and fault tolerant controller were given in terms of the linear matrix inequalities. Finally, the effectiveness of the proposed methods was verified by a simulation example. © 2016, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.

引用

页码：91 / 96

页数：5

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