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Analysis and Performance Evaluation of a Distribution STATCOM for Compensating Voltage Fluctuations

Sensarma, PS and Padiyar, KR and Ramanarayanan, V (2001) Analysis and Performance Evaluation of a Distribution STATCOM for Compensating Voltage Fluctuations. In: IEEE Trans. on Power Delivery, 16 (2).

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Abstract

Controller design of a STATCOM-based voltage compensator requires a valid analytical model of the system. If phasor algebra is used for modelling, it is difficult to accurately describe the STATCOM behaviour during compensation of the sub-cycle transients in the PCC voltage. In this paper, a small signal model of the system, with a distribution line, is derived. Predictions based on frequency domain analysis are made, which are validated by experimental results. This model, therefore, can be used for controller design where sub-cycle voltage transients are to be compensated. It is shown that the voltage controller, so designed, can accomplish voltage sag mitigation. A discussion on the design of dc bus voltage controller - and experimental results showing its performance - is also included.

Item Type: Journal Article
Additional Information: This work is out of the Ph.D. Thesis of Dr. P.S. Sensarma entitled, "Analysis and Development of a Distribution STATCOM for Power Quality Compensation" (Parthasarathi Sensarma, Ph.D, July 2000)
Keywords: Power Quality;Voltage Compensation;Modelling;Voltage Sag;STATCOM
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 10 Feb 2005
Last Modified: 19 Sep 2010 04:12
URI: http://eprints.iisc.ernet.in/id/eprint/188

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