Fault-Tolerant Control for a Class of Uncertain Systems with Actuator Faults

被引:7
|
作者
Ye S. [1 ]
Zhang Y. [2 ]
Wang X. [1 ]
Jiang B. [3 ]
机构
[1] School of Automation, Northwest Polytechnical University, Xi'an
[2] Department of Mechanical and Industrial Engineering, Concordia University, Montreal
[3] School of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
基金
加拿大自然科学与工程研究理事会;
关键词
affine quadratic stability (AQS); continuous actuator fault; fault-tolerant control (FTC); linear matrix inequality (LMI); multi-objective synthesis;
D O I
10.1016/S1007-0214(10)70047-X
中图分类号
学科分类号
摘要
The problem of fault-tolerant controller design for a class of polytopic uncertain systems with actuator faults is studied in this paper. The actuator faults are presented as a more general and practical continuous fault model. Based on the affine quadratic stability (AQS), the stability of the polytopic uncertain system is replaced by the stability at all corners of the polytope. For a wide range of problems including H∞ and mixed H2 / H∞ controller design, sufficient conditions are derived to guarantee the robust stability and performance of the closed-loop system in both normal and fault cases. In the framework of the linear matrix inequality (LMI) method, an iterative algorithm is developed to reduce conservativeness of the design procedure. The effectiveness of the proposed design is shown through a flight control example. © 2010 Tsinghua University Press.
引用
收藏
页码:174 / 183
页数:9
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