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Prediction of geomagnetically induced currents (GICs) flowing in Japanese power grid for Carrington-class magnetic storms [PDF]

open access: yesEarth, Planets and Space, 2021
AbstractLarge-amplitude geomagnetically induced currents (GICs) are the natural consequences of the solar–terrestrial connection triggered by solar eruptions. The threat of severe damage of power grids due to the GICs is a major concern, in particular, at high latitudes, but is not well understood as for low-latitude power grids.
Yusuke Ebihara   +2 more
openaire   +3 more sources

Influences of various magnetospheric and ionospheric current systems on geomagnetically induced currents around the world [PDF]

open access: yes, 2017
Ground-based observations of geomagnetic field (B field) are usually a superposition of signatures from different source current systems in the magnetosphere and ionosphere.
Amm   +65 more
core   +1 more source

Improving the modeling of geomagnetically induced currents in Spain [PDF]

open access: yes, 2018
Vulnerability assessments of the risk posed by geomagnetically induced currents (GICs) to power transmission grids benefit from accurate knowledge of the geomagnetic field variations at each node of the grid, the Earth's geoelectrical structures beneath ...
Campanyà, Joan   +5 more
core   +1 more source

A Review of Geomagnetically Induced Current Effects on Electrical Power System: Principles and Theory

open access: yesIEEE Access, 2020
Geomagnetically induced current (GIC) has been a significant concern for the electrical power grid in high latitudes for decades. Its origin starts in the Sun; during extreme space weather, the magnetic field of the Earth varies rapidly.
Zmnako Mohammed Khurshid Abda   +3 more
doaj   +1 more source

Forecasting GIC Activity Associated With Solar Wind Shocks for the Australian Region Power Network

open access: yesSpace Weather, 2022
s Space weather induced Geomagnetically Induced Currents (GICs) that are hazardous to power networks at high latitudes are often the result of rapid changes in near‐Earth space current systems such as the auroral electrojets and field‐aligned currents ...
R. A. Marshall   +3 more
doaj   +1 more source

Modelling geomagnetically induced currents in midlatitude Central Europe using a thin-sheet approach [PDF]

open access: yes, 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

Determining ULF Wave Contributions to Geomagnetically Induced Currents: The Important Role of Sampling Rate

open access: yesSpace Weather, 2023
Past studies found that large‐amplitude geomagnetically induced current (GIC) related to magnetospheric Ultra Low Frequency (ULF) waves tend to be associated with periods >120 s at magnetic latitudes >60°, with comparatively (a) smaller GIC amplitudes at
Michael D. Hartinger   +11 more
doaj   +1 more source

Comparison of methods for modelling geomagnetically induced currents [PDF]

open access: yesAnnales Geophysicae, 2014
Assessing the geomagnetic hazard to power systems requires reliable modelling of the geomagnetically induced currents (GIC) produced in the power network.
D. H. Boteler   +2 more
doaj   +1 more source

Sensitivity of geomagnetically induced currents to varying auroral electrojet and conductivity models [PDF]

open access: yes, 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

Frequency Considerations in GIC Applications

open access: yesSpace Weather, 2021
Geomagnetically induced currents (GIC) are a phenomenon well known for its negative effects on the operations of power systems. To efficiently mitigate them requires different types of power system modeling, from GIC to alternating current harmonic ...
L. Trichtchenko
doaj   +1 more source

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