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Mathematical Problems in Engineering
Volume 2015 (2015), Article ID 249293, 14 pages
http://dx.doi.org/10.1155/2015/249293
Research Article

Networked Fault-Tolerant Control Allocation for Multiple Actuator Failures

1Center for ICT & Automobile Convergence, Kyungpook National University, Daegu 702-701, Republic of Korea
2School of Electronics Engineering, Kyungpook National University, Daegu 702-701, Republic of Korea

Received 3 May 2014; Revised 8 August 2014; Accepted 24 August 2014

Academic Editor: Qingsong Xu

Copyright © 2015 Inseok Yang and Dongik Lee. 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 proposes intelligent fault-tolerant control technique using network. Not only control commands generated by a controller but also diagnostic data for tolerating failures can be transmitted through network. In this paper, fault-tolerant control allocation method (FTCA) is proposed to tolerate failures in more than one actuator. FTCA is based on a well-known actuator management technique called control allocation (CA). While the conventional CA is used to redistribute actuators optimally, FTCA redistributes actuators to compensate for the performance degradation due to actuator failure. To analyze the effects of faulty actuator, this paper proposes the general model of the faulty system firstly. And then the modified CA for tolerating the effect of failure is proposed. The performance of the proposed FTCA method is verified by the numerical simulations with application to F-18 High Alpha Research Vehicle (HARV).