Results 21 to 30 of about 2,957 (186)
South African Journal of Science, 2019 Geomagnetic storms are space weather events that result in a temporary disturbance of the earth’s magnetosphere caused by a solar wind that interacts with the earth’s magnetic field.
Emmanuel Nahayo +3 more
doaj +1 more source
HV Transformer Protection and Stabilization under Geomagnetically Induced Currents
Energies, 2020 This paper presents the results of research related to the issues arising from DC excitation of power transformers due to geomagnetically induced currents (GIC). First, the GIC phenomena and their influence on power system operation are discussed.
Daniel Bejmert +3 more
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Modelling geomagnetically induced currents in midlatitude Central Europe using a thin-sheet approach [PDF]
, 2017 Geomagnetically induced currents (GICs) in power systems, which can lead to transformer damage over the short and the long term, are a result of space weather events and geomagnetic variations. For a long time, only high-latitude areas were considered to
Achleitner, Georg +8 more
core +7 more sources
Advances in Mechanical Engineering, 2017 Geomagnetically induced currents through the transformer windings produce biases of transformers, increase transformer reactive power losses, and lead to a significant lack of reactive power support in the power system.
Pei-Hong Yang +4 more
doaj +1 more source
Geomagnetically Induced Currents at Middle Latitudes: 1. Quiet‐Time Variability
Space Weather, 2022 Geomagnetically induced currents (GICs) at middle latitudes have received increased attention after reported power grid disruptions due to geomagnetic disturbances. However, quantifying the risk to the electric power grid at middle latitudes is difficult
Adam C. Kellerman +11 more
doaj +1 more source
Space Weather, 2023 A predictive model for the variation of ionospheric currents is of great scientific and practical importance to our modern industrial society. To study the response of ionospheric currents to external drivers including geomagnetic indices and solar ...
Xin Cao +6 more
doaj +1 more source
Assessment of Geomagnetically Induced Currents Impact on Power Grid Modelling
Magnetism, 2023 Recent history demonstrates that threat has no borders, though risk does, due to national and regional differences in vulnerabilities and exposure landscapes. The difference between well and poorly managed threat is striking.
Stanislav Gritsutenko +3 more
doaj +1 more source
Space Weather, 2023 In this study, we perform three‐dimensional (3‐D) ground electric field (GEF) modeling in Fennoscandia for three days of the Halloween geomagnetic storm (29–31 October 2003) using magnetic field data from the International Monitor for Auroral Geomagnetic
Elena Marshalko +3 more
doaj +1 more source
Sensitivity of geomagnetically induced currents to varying auroral electrojet and conductivity models [PDF]
, 2015 Geomagnetically induced currents (GIC) are created by the interaction of rapid changes in the magnitude of the magnetic field with the conductive subsurface of the Earth.
Beggan, Ciaran D.
core +1 more source
Continental scale modelling of geomagnetically induced currents
Journal of Space Weather and Space Climate, 2012 The EURISGIC project (European Risk from Geomagnetically Induced Currents) aims at deriving statistics of geomagnetically induced currents (GIC) in the European high-voltage power grids.
Sakharov Yaroslav +6 more
doaj +1 more source