Results 31 to 40 of about 1,119 (190)

Relation between substorm characteristics and rapid temporal variations of the ground magnetic field [PDF]

, 2006
Auroral substorms are one of the major causes of large geomagnetically induced currents (GIC) in technological systems. This study deals with different phases of the auroral substorm concerning their severity from the GIC viewpoint. Our database consists
A. Pulkkinen, A. Viljanen, E. I. Tanskanen   +2 more
core   +2 more sources

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

Optimal Blocking Devices Placement for Geomagnetic Disturbance Mitigation Based on Sensitivity of Induced Geoelectric Fields

IEEE Access, 2022
When geomagnetic storms occur, geomagnetically induced currents (GICs), as a kind of quasi-DC, flow through the transformer and cause the increase of reactive power loss ( $Q_{\mathrm {GIC}}$ ). Several mitigation actions (e.g., changing grid topology or
Wang Shengquan, Wu Yiming, Sun Yongjun, Cheng Jun, Wei Chao   +4 more
doaj   +1 more source

Space Weather Impact on the Scandinavian Interconnected Power Transmission System [PDF]

, 2015
Geomagnetic storms (GMS) can seriously affect high voltage transmission power grids. More specifically, GMS can inject geomagnetically induced currents (GICs) into the power network, thus causing instabilities and eventually leading to grid collapse ...
KRAUSMANN Elisabeth, PICCINELLI Roberta
core   +1 more source

Quantifying the daily economic impact of extreme space weather due to failure in electricity transmission infrastructure [PDF]

, 2017
Extreme space weather due to coronal mass ejections has the potential to cause considerable disruption to the global economy by damaging the transformers required to operate electricity transmission infrastructure.
Alan W. P. Thomson, Anderson, Andrew Skelton, Baker, Balan, Baldwin, Banerjee, Barbosa, Barnes, Bolduc, Boteler, Charles T. Gaunt, Czech, Department of Energy, Dietzenbacher, Edward J. Oughton, Feldstein, Fujii, Fujii, Haimes, Inomata, Intriligator, Johnson, Kucukvar, Liou, Liu, Liu, Marshall, Marshall, Moodley, Moran, Möstl, Nakamura, Ngwira, Ngwira, Ngwira, OECD, Oughton, Ouyang, Pulkkinen, Pulkkinen, Pulkkinen, Richard B. Horne, Rinaldi, Rostoker, Samuelsson, Schrijver, Schulte in den Bäumen, Shiokawa, Silverman, Siscoe, Sonis, Temmer, Thomson, Thébault, Timmer, Torta, Trivedi, Tsurutani, Tsurutani, Tsurutani, Tukker, Watari, Watari, Wintoft, Zhang   +65 more
core   +2 more sources

A New Standalone Tool for DC‐Equivalent Network Generation and GIC Calculation in Power Grids With Multiple Voltage Levels

Space Weather, 2022
Space Weather phenomena pose a major socio‐economic threat due, in part, to the vulnerability of power network transformers to geomagnetically induced currents (GIC).
S. Marsal, J. M. Torta, V. Canillas‐Pérez, J. J. Curto   +3 more
doaj   +1 more source

An Approach to Diagnostics of Geomagnetically Induced Currents Based on Ground Magnetometers Data

Applied Sciences, 2022
The geomagnetically induced currents (GICs) in extended grounded technological systems are driven by telluric electric fields induced by the rapid changes of the geomagnetic field.
Andrei Vorobev, Anatoly Soloviev, Vyacheslav Pilipenko, Gulnara Vorobeva, Yaroslav Sakharov   +4 more
doaj   +1 more source

Nuclear Magnetohydrodynamic EMP, Solar Storms, and Substorms

, 2003
In addition to a fast electromagnetic pulse (EMP), a high altitude nuclear burst produces a relatively slow magnetohydrodynarnic EMP (MHD EMP), whose effects are like those from solar storm geomagnetically induced currents (SS GIC).
Cokkinides, George J., Glytsis, Elias N., Meliopoulos, A. P. Sakis, Rabinowitz, Mario   +3 more
core   +1 more source

Understanding GIC in the UK and French high-voltage transmission systems during severe magnetic storms [PDF]

, 2017
The measurement and collection of digital magnetic field data in Europe extends back to the 1970s, providing over 30 years of data for the analysis of severe space weather.
A. Viljanen, A. W. P. Thomson, Amm, Beggan, Beggan, Boteler, C. D. Beggan, Erinmez, Erinmez, G. S. Kelly, Lehtinen, Pirjola, Pulkkinen, Radasky, Schulte in den Bümen, Siscoe, Thomson, Thomson, Torta, Tsurutani, Vasseur, Vasyliūnas, Viljanen, Viljanen, Viljanen, Viljanen, Ádám   +26 more
core   +1 more source

Statistical relationships between variations of the geomagnetic field, auroral electrojet, and geomagnetically induced currents

Solar-Terrestrial Physics, 2019
Using observations from the IMAGE magnetic observatories and the station for recording geomagnetically induced currents (GIC) in the electric transmission line in 2015, we examine relationships between geomagnetic field and GIC variations.
Vorobev A.V., Pilipenko V.A., Sakharov Ya.A., Selivanov V.N.   +3 more
doaj   +1 more source