Open AccessEffect of the GICs on magnetic saturation of asymmetric three‐phase transformer
Author(s) -
Aboura Faouzi,
Touhami Omar
Publication year - 2017
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2016.0868
Subject(s) - transformer , finite element method , current transformer , phenomenon , control theory (sociology) , engineering , physics , mechanics , voltage , electrical engineering , computer science , structural engineering , control (management) , quantum mechanics , artificial intelligence
The most commonly used models in geomagnetic‐induced currents (GICs) studies neglect the hysteresis phenomenon. In relation to this, the authors present an approach to integrate the hysteresis phenomenon to the finite‐element model (2D‐FEM) for the effects of the GIC which considers the current, as an input quantity. These currents are obtained by a dynamic electromagnetic model that the authors developed, and are compared with the results obtained by experimentation. This is the first time that this phenomenon has been shown in three‐phase transformers with load. They also provide other practical responses in relation to other papers in which their studies concern the imbalance GIC bias on the asymmetric three‐phase transformers with no‐load while the majority of the transformers operate on load.