Vestnik КRAUNC. Fiz.-Mat. nauki. 2023. vol. 45. no. 4. P. 190-200. ISSN 2079-6641

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Estimation of Geomagnetically Induced Currents in the Altai Republic Power System According to the Baygazan Magnetic Station Data

A.Yu. Gvozdarev¹^\ast, O. V. Kazantzeva², E. O. Uchaikin², E. G. Yadagaev³

¹Institute of Cosmophysical Research and Radio Wave Propagation, FEB RAS 684034 Kamchatka region, Elizovskiy district, Paratunka, Mirnaya str., 7, Russia
²Gorno-Altaisk State University, 649000, Gorno-Altaisk, Lenkina str., 1, Russia
³Joint-stock company “Chukotenergo” , 689000, Chukotka region, Anadyr, Kukutskiy str., 34, Russia

Abstract. A geoelectric field, voltages between grounding points of the Altai Republic power grid and geomagnetically induced currents (GIC) in power lines and grounding nodes were calculated in homogeneously conducting Earth’s crust model with the resistivity of 5\cdot10^2 Ohm·m based on the magnetic station “Baygazan”data in the Russian Altai. These estimations have shown that the geoelectric field increased up to 30 mV/km, the potenthial difference between the power line grounding points reached value of 3.5 V and GIC value reached 0.12 A during the geomagnetic storm on August 5, 2023 (Kp=5–6) with geomagnetic field change rate increasing up to 10–15 nT/min. The GIC value in power line depends on the geoelectric field orientation. High rate of the north geomagnetic field component change causes GIC in latitude – oriented lines (Kosh-Agach – Inya, Ulagan – Inya, Ust-Koksa – Inya), high one for east component causes GIC in meridian – oriented line (Cherga – Inya). The resistancies asymmetry of the ’Ulagan – Inya’ and ’Ust-Koksa – Inya’ power lines causes an increase of GIC at Ininskaya substation grounding node with latitude-oriented geoelectric fields. The calculated data are compared with the results of monitoring of even harmonics amplitudes at the Ininskaya power substation. It is shown that the calculated value of the GIC in the grounded neutral of the power transformer at the Ininskaya substation correlates with the amplitude of even harmonics during the geomagnetic storm.

Key words: Geomagnetically induced currents, Altai, geoelectric field, simulation, Earth’s crust resistivity, even AC harmonics.

Received: 02.12.2023; Revised: 12.12.2023; Accepted: 13.12.2023; First online: 14.12.2023

For citation. Gvozdarev A.Yu., Kazantzeva O. V., Uchaikin E. O., Yadagaev E. G. Estimation of geomagnetically induced currents in the Altai republic power system according to the Baygazan magnetic station data. Vestnik KRAUNC. Fiz.-mat. nauki. 2023, 45: 4, 190-200. EDN: TCNDNG.

Funding. This work is supported by the RSF grant 23-27-10055 and the Ministry of Science and Education of the Altai Republic.

Competing interests. There are no conflicts of interest regarding authorship and publication.

Contribution and Responsibility. All authors contributed to this article. Authors are solely responsible for providing the final version of the article in print. The final version of the manuscript was approved by all authors.

^\astCorrespondence: E-mail:

The content is published under the terms of the Creative Commons Attribution 4.0 International License

© Gvozdarev A.Yu., Kazantzeva O. V., Uchaikin E. O., Yadagaev E.G., 2023

© Institute of Cosmophysical Research and Radio Wave Propagation, 2023 (original layout, design, compilation)


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Gvozdarev Alexey Yur’evich – Ph. D. (in Engineering), Senior Researcher, Complex Geophysical observatory “Paratunka Institute of Cosmophysical Research and Radio Wave Propagation Far Eastern Branch of the Russian Academy of Sciences, Paratunka, Russia, ORCID 0000-0002-0196-4712.

Kazantseva Olga Valer’evna – Master’s Degree student, Institute of Physics & Mathematics and Ingineering & Techology, Gorno-Altaisk State University, Gorno-Altaisk, Russia, ORCID 0009-0002-7930-1609.

Uchaikin Evgeniy Olegovich – Engineer, Robionics Laboratory, Gorno-Altaisk State University, Gorno-Altaisk, Russia, ORCID 0000-0001-9133-5137

Yadagaev Erkemen Gennad’evich – Ph. D. (in Engineering), Head of the Department of preparation and carrying out repairs, Joint-stock company “Chukotenergo Anadyr, Russia, ORCID 0009-0001-6298-5306