Results 31 to 40 of about 3,456 (197)

Modeling Calculation and Influencing Factors of Geomagnetically Induced Current in Sanhua Power Grid

Journal of Physics: Conference Series, 2023
The time-varying magnetic field of a magnetic storm induces an electric field in the earth, which generates geomagnetically induced currents (GIC) when it acts on the power grid and has many hazards to the power system.
Zan-ming Chen, Chunming Liu, An-qi Li, Yue Yan   +3 more
semanticscholar   +1 more source

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

, 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, Anderson, Anderson, Barbosa, Baumjohann, Beland, Bostrom, Boteler, Boteler, Cagniard, Carter, Civet, Danskin, De Villiers, De Villiers, Egedal, Gannon, Gaunt, Gilbert, Häkkinen, Iyemori, J. S. de Villiers, Kappenman, Kerridge, Kozyra, Liu, Lourakis, Love, M. Kosch, Marshall, Ngwira, Omondi, Onwumechili, Owen, Pirjola, Pirjola, Pirjola, Pirjola, Pirjola, Pirjola, Press, Pulkkinen, Pulkkinen, Pulkkinen, Richmond, S. Lotz, Schwarz, Sugiura, Thomson, Thomson, Thomson, Torta, Trivedi, Uozumi, Vanhamäki, Vanhamäki, Viljanen, Wait, Wait, Wait, Wanliss, Watari, Watari, Wik, Y. Yamazaki, Zhang   +65 more
core   +1 more source

Geomagnetically Induced Current Model in New Zealand Across Multiple Disturbances: Validation and Extension to Non‐Monitored Transformers

Space Weather, 2022
Geomagnetically induced currents (GICs) produced during geomagnetic disturbances pose a risk to the safe operation of electrical power networks. One route to determine the hazard of large and extreme geomagnetic disturbances to national electrical ...
D. Manus, C. Rodger, M. Ingham, M. Clilverd, M. Dalzell, T. Divett, G. Richardson, T. Petersen   +7 more
semanticscholar   +1 more source

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

Space 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, E. A. Pearce, C. L. Waters, M. Terkildsen   +3 more
doaj   +1 more source

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

, 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, Ledo Fernández, Juanjo, Marcuello Pascual, Alejandro, Marsal, S., Queralt i Capdevila, Pilar, Torta, J.M.   +5 more
core   +1 more source

Geomagnetically Induced Current Modeling in New Zealand: Extreme Storm Analysis Using Multiple Disturbance Scenarios and Industry Provided Hazard Magnitudes

Space Weather, 2022
Geomagnetically induced currents (GICs) are induced in electrical power transmission networks during geomagnetic disturbances. Understanding the magnitude and duration of the GIC expected during worst‐case extreme storm scenarios is vital to estimate ...
D. Manus, C. Rodger, M. Dalzell, A. Renton, G. Richardson, T. Petersen, M. Clilverd   +6 more
semanticscholar   +1 more source

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, Bailey, Rachel L., Beggan, Ciaran D., Egli, Ramon, Halbedl, Thomas S., Leonhardt, Roman, Römer, Alexander, Schattauer, Ingrid, Wesztergom, Viktor   +8 more
core   +7 more sources

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

Space 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, Xueling Shi, Craig J. Rodger, Ikuko Fujii, E. Joshua Rigler, Karl Kappler, Jürgen Matzka, Jeffrey J. Love, Joseph B. H. Baker, Daniel H. Mac Manus, Michael Dalzell, Tanja Petersen   +11 more
doaj   +1 more source

Comparison of methods for modelling geomagnetically induced currents [PDF]

Annales 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, R. J. Pirjola, R. J. Pirjola   +2 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