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Static VAR system auxiliary controllers for improvement of dynamic stability

Padiyar, KR and Varma, RK (1990) Static VAR system auxiliary controllers for improvement of dynamic stability. In: International Journal of Electrical Power & Energy Systems, 12 (4). pp. 287-297.

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Official URL: http://dx.doi.org/10.1016/0142-0615(90)90045-D


A study of the improvement in system dynamic stability through effective use of auxiliary control of a static VAR system (SVS) is presented. The efficacy of various controls signals for reactive power modulation of an SVS installed at the midpoint of a long transmission line is investigated with the objective of damping low-frequency oscillations which are critical in limiting power transfer. A new auxiliary signal designated as computed internal frequency (CIF) is proposed which synthesizes the frequency of the generator internal voltage from quantities available at the SVS bus. It is demonstrated that this signal is far superior to other conventional auxiliary signals in that it allows full utilization of the network transmission capacity.

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 stability;eigenvalue analysis
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 29 Jun 2007
Last Modified: 18 Jan 2012 05:55
URI: http://eprints.iisc.ac.in/id/eprint/11330

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