Modelling of geomagnetically induced currents in the Czech transmission grid

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00552417" target="_blank" >RIV/67985815:_____/21:00552417 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0327548" target="_blank" >http://hdl.handle.net/11104/0327548</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1186/s40623-021-01555-5" target="_blank" >10.1186/s40623-021-01555-5</a>

Result language
angličtina
Original language name
Modelling of geomagnetically induced currents in the Czech transmission grid
Original language description
We investigate the maximum expected magnitudes of the geomagnetically induced currents (GICs) in the Czech transmission power network. We compute a model utilising the Lehtinen-Pirjola method, considering the plane-wave model of the geoelectric field, and using the transmission network parameters kindly provided by the operator. We find that the maximum amplitudes expected in the nodes of the Czech transmission grid during the Halloween storm-like event are about 15 A. For the “extreme-storm” conditions with a 1-V/km geoelectric field, the expected maxima do not exceed 40 A. We speculate that the recently proven statistical correlation between the increased geomagnetic activity and anomaly rate in the power grid may be due to the repeated exposure of the devices to the low-amplitude GICs.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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