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Investigations on Strong Resonance in Multimachine Power Systems With STATCOM Supplementary Modulation Controller

Padiyar, KR and SaiKumar, HV (2006) Investigations on Strong Resonance in Multimachine Power Systems With STATCOM Supplementary Modulation Controller. In: IEEE Transactions on Power Systems, 21 (2). pp. 754-762.

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Abstract

The phenomenon of strong resonance that is noticed in systems with mode coupling is characterized by coincidence both of eigenvalues and eigenvectors. It is necessary to consider the effect of strong resonance on the coupled modes while designing a damping controller for a system. The work presented in this paper aims at investigating the behavior of two oscillatory modes in the neighborhood of strong resonance in power systems in the presence of a STATCOM damping controller. The modes that interact near the point of strong resonance are identified. The concept of multi-modal decomposition is applied to isolate the swing mode (SM) of interest. The relevant exciter mode (EM) is identified from the knowledge of participation factors. The method of perturbations suggested by Seiranyan to study the interaction of the eigenvalues near the point of strong resonance is modified suitably to make it applicable to systems with feedback controller. The illustrative examples include three- and four-machine systems.

Item Type: Journal Article
Additional Information: Copyright 2006 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: Eigenvalue collision;Modal decomposition;Oscillatory modes;Strong resonance;Supplementary modulation controllers
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 25 Aug 2008
Last Modified: 19 Sep 2010 04:27
URI: http://eprints.iisc.ernet.in/id/eprint/7098

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