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A Modified Heffron-Phillip's Model for The Design of Power System Stabilizers

Gurrala, Gurunath and Sen, Indraneel (2008) A Modified Heffron-Phillip's Model for The Design of Power System Stabilizers. In: Joint International Conference on Power Systems Technology (POWERCON)/IEEE Power India Conference, OCT 12-15, 2008, New Delhi, INDIA, pp. 354-359.

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Abstract

In this paper a modified Heffron-Phillip's (K-constant) model is derived for the design of power system stabilizers. A knowledge of external system parameters, such as equivalent infinite bus voltage and external impedances or their equivalent estimated values is required for designing a conventional power system stabilizer. In the proposed method, information available at the secondary bus of the step-up transformer is used to set up a modified Heffron-Phillip's (ModHP) model. The PSS design based on this model utilizes signals available within the generating station. The efficacy of the proposed design technique and the performance of the stabilizer has been evaluated over a range of operating and system conditions. The simulation results have shown that the performance of the proposed stabilizer is comparable to that could be obtained by conventional design but without the need for the estimation and computation of external system parameters. The proposed design is thus well suited for practical applications to power system stabilization, including possibly the multi-machine applications where accurate system information is not readily available.

Item Type: Conference Paper
Additional Information: Copyright 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: Heffron-Phillip's model; Power System Stabilizers(PSS)
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 21 Dec 2009 08:04
Last Modified: 19 Sep 2010 05:42
URI: http://eprints.iisc.ernet.in/id/eprint/22644

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