<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>When a magnetic storm hits a power transmission system, quasi-stationary geomagnetically induced currents (GIC) are generated in the high-voltage part of the system. These currents cause semi-saturation of the magnetic circuits of power transformers, which induces current overload in their high-voltage windings and subsequently thermal overload, which can lead to system failures. This rather complex phenomenon was described in [<xref ref-type="bibr" rid="j_jee-2024-0027_ref_011">11</xref>] by a system of nonlinear differential equations and subsequently solved. This very challenging method is replaced in the present work by a simple approach. It allows not only predicting the imminent danger of system collapse, but gives transformer designers valuable information on how they can counteract this danger.</p>
</abstract>

When a magnetic storm hits a power transmission system, quasi-stationary geomagnetically induced currents (GIC) are generated in the high-voltage part of the system. These currents cause semi-saturation of the magnetic circuits of power transformers, which induces current overload in their high-voltage windings and subsequently thermal overload, which can lead to system failures. This rather complex phenomenon was described in [11] by a system of nonlinear differential equations and subsequently solved. This very challenging method is replaced in the present work by a simple approach. It allows not only predicting the imminent danger of system collapse, but gives transformer designers valuable information on how they can counteract this danger.

Contribution to the determination of the effect of magnetic storms on the electric power transmission system

Department of Electrical and Computational Engineering

Department of Electronics and Information Technology

University of West Bohemia, Plzen and Research Institute RICE in Plzen

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

When a magnetic storm hits a power transmission system, quasi-stationary geomagnetically induced currents (GIC) are generated in the high-voltage part of the...

Contribution to the determination of the effect of magnetic storms on the electric power transmission system

Published Online: Jun 08, 2024

Page range: 224 - 228

Received: Apr 10, 2024

DOI: https://doi.org/10.2478/jee-2024-0027

Keywords
geomagnetic field, coronal mass ejection, geomagnetically induced currents, magnetic semi-saturation, current overload, thermal overload

© 2024 Daniel Mayer et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Contribution to the determination of the effect of magnetic storms on the electric power transmission system

Published Online: Jun 08, 2024

Page range: 224 - 228

Received: Apr 10, 2024

DOI: https://doi.org/10.2478/jee-2024-0027

Keywordsgeomagnetic field, coronal mass ejection, geomagnetically induced currents, magnetic semi-saturation, current overload, thermal overload

© 2024 Daniel Mayer et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
geomagnetic field, coronal mass ejection, geomagnetically induced currents, magnetic semi-saturation, current overload, thermal overload