Volume 7, Issue 4 (December 2011)                   IJEEE 2011, 7(4): 283-291 | Back to browse issues page

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Radmanesh H, Rostami M. Impacts of New Suggested Ferroresonance Limiter on the Stability Domain of Ferroresonance Modes in Power Transformers Considering Metal Oxide Surge Arrester Effect. IJEEE 2011; 7 (4) :283-291
URL: http://ijeee.iust.ac.ir/article-1-375-en.html
Impacts of New Suggested Ferroresonance Limiter on the Stability Domain of Ferroresonance Modes in Power Transformers Considering Metal Oxide Surge Arrester Effect
H. Radmanesh , M. Rostami
Abstract:   (9695 Views)
this work studies the effect of neutral earth resistance on the controlling ferroresonance oscillation in the power transformer including MOV surge arrester. A simple case of ferroresonance circuit in a three phase transformer is used to show this phenomenon and the three-phase transformer core structures including nonlinear core losses are discussed. The effect of MOV surge arrester and neutral earth resistance on the onset of chaotic ferroresonance and controlling chaotic transient in a power transformer including nonlinear core losses has been studied. It is expected that these resistances generally cause into ferroresonance control. Simulation has been done on a power transformer rated 50 MVA, 635.1 kV with one open phase. The magnetization characteristic of the transformer is modelled by a single-value two-term polynomial with q=7, 11. The core losses are modelled by third order in terms of voltage. The simulation results reveal that connecting the MOV arrester and neutral resistance to the transformer, exhibits a great impact on ferroresonance over voltages. Copyright © 2009 Praise Worthy Prize S.r.l. - All rights reserved.
Keywords: MOV Arrester , Neutral Earth Resistance , Control of Chaos , Bifurcation , Ferroresonance , Power Transformers , Nonlinear Core Losses Effect
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Type of Study: Research Paper | Subject: Power Systems Transients
Received: 2011/02/16 | Revised: 2013/04/30 | Accepted: 2013/04/30
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© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.