Static VAR system auxiliary controllers for damping torsional oscillations

Padiyar, KR and Varma, RK (1990) Static VAR system auxiliary controllers for damping torsional oscillations. In: International Journal of Electrical Power & Energy Systems, 12 (4). pp. 271-286.

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Abstract

A new concept is presented according to which a midpoint-located static VAR system ( S VS) with appropriate auxiliary control can be simultaneously employed for damping torsional oscillations and enhancing the steady state power transfer limit. Two new SVS auxiliary control signals designated as computed internal frequency (CIF) and computed rotor frequency (CRF), which can be locally synthesized, are proposed. Various locally available signals for SVS control are examined in respect of their ability to stabilize all the torsional modes. It is shown from eigenvalue analysis that with a suitable choice of signal and SVS auxiliary controller parameters, the desired objective can be achieved even when the transmission line is compensated at a level where one of the torsional modes is critically destabilized.

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:	on-line control strategies;dynamic stabifity;eigenvalue analysis
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	29 Jun 2007
Last Modified:	18 Jan 2012 05:23
URI:	http://eprints.iisc.ac.in/id/eprint/11324

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