Journal of Control Science and Engineering
Volume 2008 (2008), Article ID 152030, 10 pages
doi:10.1155/2008/152030
Research Article

Design and Assessment of a Multiple Sensor Fault Tolerant Robust Control System

S.S. Yang1 and J. Chen2

1Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
2School of Engineering and Design, Brunel University, Uxbridge UB8 3PH, UK

Received 29 December 2006; Revised 21 September 2007; Accepted 12 December 2007

Academic Editor: Jakob Stoustrup

Copyright © 2008 S.S. Yang and J. Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents an enhanced robust control design structure to realise fault tolerance towards sensor faults suitable for multi-input-multi-output (MIMO) systems implementation. The proposed design permits fault detection and controller elements to be designed with considerations to stability and robustness towards uncertainties besides multiple faults environment on a common mathematical platform. This framework can also cater to systems requiring fast responses. A design example is illustrated with a fast, multivariable and unstable system, that is, the double inverted pendulum system. Results indicate the potential of this design framework to handle fast systems with multiple sensor faults.