Modeling and control of unified power flow controller for transient stability

Padiyar, KR and Rao, KU (1999) Modeling and control of unified power flow controller for transient stability. In: International Journal of Electrical Power & Energy Systems, 21 (1). pp. 1-11.

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Abstract

FACTS controllers are emerging as viable and economic solutions to the problems of large interconnected ne networks, which can endanger the system security. These devices are characterized by their fast response, absence of inertia, and minimum maintenance requirements. Thyristor controlled equipment like Thyristor Controlled Series Capacitor (TCSC), Static Var Compensator (SVC), Thyristor Controlled Phase angle Regulator (TCPR) etc. which involve passive elements result in devices of large sizes with substantial cost and significant labour for installation. An all solid-state device using GTOs leads to reduction in equipment size and has improved performance. The Unified Power Flow Controller (UPFC) is a versatile controller which can be used to control the active and reactive power in the Line independently. The concept of UPFC makes it possible to handle practically all power flow control and transmission line compensation problems, using solid-state controllers, which provide functional flexibility, generally not attainable by conventional thyristor controlled systems. In this paper, we present the development of a control scheme for the series injected voltage of the UPFC to damp the power oscillations and improve transient stability in a power system. (C) 1998 Elsevier Science Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	International Journal of Electrical Power & Energy Systems
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Facts controller;UPFC;Modelling;Transient stability
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	30 Jun 2011 11:10
Last Modified:	30 Jun 2011 11:10
URI:	http://eprints.iisc.ac.in/id/eprint/38669

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