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Mathematical Problems in Engineering
Volume 2016, Article ID 9191073, 13 pages
Research Article

Stabilization for Damping Multimachine Power System with Time-Varying Delays and Sector Saturating Actuator

1Electrical and Electronic Engineering College, Harbin University of Science and Technology, Harbin 150080, China
2College of Automation Engineering, Qingdao University of Technology, Qingdao 266520, China

Received 4 August 2016; Accepted 16 October 2016

Academic Editor: Abdellah Benzaouia

Copyright © 2016 Linlin Ma 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 studies the stabilization problem for damping multimachine power system with time-varying delays and sector saturating actuator. The multivariable proportional plus derivative (PD) type stabilizer is designed by transforming the problem of PD controller design to that of state feedback stabilizer design for a system in descriptor form. A new sufficient condition of closed-loop multimachine power system asymptomatic stability is derived based on the Lyapunov theory. Computer simulation of a two-machine power system has verified the effectiveness and efficiency of the proposed approach.