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Impact Of Geomagnetically Induced Currents On Power Transformers, Jonathan E. Berge
Impact Of Geomagnetically Induced Currents On Power Transformers, Jonathan E. Berge
Electronic Thesis and Dissertation Repository
This thesis deals with the impact of Geomagnetically Induced Current (GIC) on power transformers in electrical power systems. A simulator to calculate the flows of GIC in an electrical power network, based on an assumed or measured induced geoelectric potential is proposed. This simulator includes all needed mapping techniques to handle a system that cover a large geographical area.
A correlation between GIC and the reactive power absorbed in the core of the saturated transformer is proposed. That correlation is used to estimate GIC in a transformer utilizing existing reactive power measuring infrastructure within the electrical grid without the need …