NDLI: Electrical Power Systems Stabilization through Series Compensation by using Variable Structure Control

Content Provider	IEEE Xplore Digital Library
Author	Alcalde, V.H.C. Fernandes, A.A. Soares, L.R.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., Brasilia Univ. (Alcalde, V.H.C.)
Abstract	This work deals with power system stabilization through a flexible transmission line (FACTS). Series compensation is introduced by a controlled switching scheme that changes the transmission line reactance. Switching is implemented according to variable structure control concepts in order to establish a sliding mode operation where oscillations die out very fast. A power system consisting of a synchronous generator, a line reactance with series compensation and an infinite bus is used as a case study. For this basic power system control strategies are shown to pursue: a) sliding mode operation; b) asymptotic stability; or c) asymptotic stability with sliding mode operation. The last strategy assures asymptotic stability for large oscillations and afterwards a fast convergence towards a stable equilibrium state. Simulation tests are then performed for the basic power system, first, for an initial condition and then under a disturbance. The dynamics of a reduced model of a real power system is also studied under a disturbance. The combined strategy, asymptotic stability with sliding mode, shows to be adequate for power system stabilization
Starting Page	98
Ending Page	103
File Size	223878
Page Count	6
File Format	PDF
ISBN	1424402085
DOI	10.1109/VSS.2006.1644500
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-05
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Asymptotic stability Power system dynamics Power system simulation Power system control Power system stability Control systems Electric variables control Power systems Power system modeling Sliding mode control
Content Type	Text
Resource Type	Article

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