Statistical Analysis of the Correlation Between Anomalies in the Czech Electric Power Grid and Geomagnetic Activity

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00517170" target="_blank" >RIV/67985815:_____/19:00517170 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0302458" target="_blank" >http://hdl.handle.net/11104/0302458</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2019SW002181" target="_blank" >10.1029/2019SW002181</a>

Result language
angličtina
Original language name
Statistical Analysis of the Correlation Between Anomalies in the Czech Electric Power Grid and Geomagnetic Activity
Original language description
Eruptive events on the Sun have an impact on the immediate surroundings of the Earth. Through induction of electric currents, they also affect Earth-bound structures such as the electric power transmission networks. Inspired by recent studies we investigate the correlation between the disturbances recorded in 12 years in the maintenance logs of the Czech electric power distributors with the geomagnetic activity represented by the K index. We find that in case of the data sets recording the disturbances on power lines at the high and very high voltage levels and disturbances on electrical substations, there is a statistically significant increase of anomaly rates in the periods of tens of days around maxima of geomagnetic activity compared to the adjacent minima of activity. There are hints that the disturbances are more pronounced shortly after the maxima than shortly before the maxima of activity. Our results provide indirect evidence that the geomagnetically induced currents may affect the occurrence rate of anomalies registered on power-grid equipment even in the midlatitude country in the middle of Europe. A follow-up study that includes the modeling of geomagnetically induced currents is needed to confirm our findings.
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
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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