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Mathematical Problems in Engineering
Volume 2015, Article ID 150921, 13 pages
Research Article

Decentralized Control for the Interconnected Time-Delay Singular/Nonlinear Subsystems with Closed-Loop Decoupling Property

1Integrated Logistical Support Center, National Chung-Shan Institute of Science and Technology, Taoyuan 32599, Taiwan
2Department of Electrical Engineering, National Ilan University, Ilan 26047, Taiwan
3Graduate Institute of Automation and Control, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
4Department of Electronic Engineering, China University of Science and Technology, Taipei 11581, Taiwan

Received 26 September 2014; Accepted 4 December 2014

Academic Editor: Jun Hu

Copyright © 2015 Nien-Tsu Hu et al. 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.


This paper presents the decentralized trackers using the observer-based suboptimal method for the interconnected time-delay singular/nonlinear subsystems with closed-loop decoupling property. The observer-based suboptimal method is used to guarantee the high-performance trajectory tracker for two different subsystems. Then, due to the high gain that resulted from the decentralized tracker, the closed-loop system will have the decoupling property. An illustrative example is given to demonstrate the effectiveness of the proposed control structure.