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Ferroresonance of Power Transformers Considering Non-linear Core Losses and Metal Oxide Surge Arrester Effects.
- Source :
-
Electric Power Components & Systems . Mar2012, Vol. 40 Issue 5, p463-479. 17p. - Publication Year :
- 2012
-
Abstract
- In this article, a simple case of ferroresonance in a three-phase transformer is used to study the effect of a metal oxide surge arrester on the control of chaotic ferroresonance and duration of chaotic transient in a power transformer including non-linear core losses. The time-domain simulations are derived using MATLAB (The MathWorks, Natick, Massachusetts, USA) for a three-phase 50-MVA, 635.1-kV power transformers while one of its phases is opened. The magnetization characteristic of the power transformer is modeled by a single-value two-term polynomial. The non-linear core losses are modeled by a third-order power series in terms of voltage, and the core losses non-linearities are considered as well. The simulation results show that connecting the metal oxide surge arrester to the transformer exhibits a great suppressing effect on occurred ferroresonance over-voltage. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 15325008
- Volume :
- 40
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Electric Power Components & Systems
- Publication Type :
- Academic Journal
- Accession number :
- 72107394
- Full Text :
- https://doi.org/10.1080/15325008.2011.639126