Actuator fault estimation observer design for discrete‐time linear parameter‐varying descriptor systems. (17th January 2014)

• Record Type: Journal Article
• Authors: Wang, Zhenhua; Rodrigues, Mickael; Theilliol, Didier; Shen, Yi
• Is Part Of: International journal of adaptive control and signal processing. Volume 29:Number 2(2015:Feb.)
• Page Start: 242
• Page End: 258
• Publication Date: 2014-01-17
• Subjects: Adaptive control systems -- Periodicals; Adaptive signal processing -- Periodicals; 629.836
• DOI: 10.1002/acs.2469
• Languages: English
• ISSNs: 0890-6327

Abstract

<abstract abstract-type="main" id="acs2469-abs-0001"> <title>Summary</title> <p id="acs2469-para-0001">This paper deals with actuator fault estimation for a class of discrete‐time linear parameter‐varying descriptor systems. By considering the fault as an auxiliary state vector, an augmented system is established. Then, a fault estimation observer is designed based on the augmented system. In this paper, the fault estimation observer design is formulated as a linear matrix inequality (LMI) feasibility problem. Therefore, all parameters of the observer can be simultaneously designed by solving a set of strict LMIs. In order to attenuate the effect of the unknown disturbance, fault variation, and measurement noise, we further propose a robust fault estimation observer design method, which is the main contribution of this paper. Finally, performance of the proposed robust fault estimation observer is shown through the application to a truck–trailer model. Copyright © 2014 John Wiley &amp; Sons, Ltd.</p> </abstract>