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Mathematical Problems in Engineering
Volume 2016 (2016), Article ID 4247068, 6 pages
Research Article

Adaptive Sliding Mode Control of Generator Excitation System with Output Constraints

Electrical Engineering College, Liaoning University of Technology, Jinzhou, Liaoning 121001, China

Received 3 December 2015; Revised 29 May 2016; Accepted 30 May 2016

Academic Editor: Yan-Jun Liu

Copyright © 2016 Liying Sun. 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.


A nonlinear excitation controller for the uncertain parameters and external disturbances is designed by using the backstepping method and sliding mode control theory. In the design process, nonlinear features are retained completely with no linear technique used here. Compared with the excitation controllers designed via conventional linearization, the newly designed one has superiorities in strong robustness to external disturbances, good adaptive ability to variation of system parameters, super transient performance, and the ability to assure preset constraints. Simulation results prove the validity and stability of the controller.