期刊
SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS
卷 16, 期 10, 页码 1570-1582出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2018SW001931
关键词
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资金
- Swiss Reinsurance Company Ltd. (Swiss Re), Switzerland
- Russian President Scholarship for research in perspective areas of Russian economy [184]
Multiple power system equipment damage from strong geomagnetic disturbance (GMD) can significantly disrupt power grid operation. This has happened twice: in 1989, in North America and the United Kingdom and, in 2003, in Scandinavia and South Africa. Modern bulk high-voltage power grids were designed more than 60 years ago for achieving more economic benefits in power transfer. In turn, high-voltage, and especially the lately designed ultrahigh-voltage, grids are more vulnerable to GMD. It is anticipated that the demand of detailed study of power grid's vulnerability to GMD will expand with broader awareness of the negative effects. The common approach requires the knowledge of the data on geophysical parameters of the study region, which is not accessible to the specialists without relevant background. In this paper, an alternative algorithm for preliminary evaluation of power grid's robustness to GMD is proposed. It takes into account various critical factors and provides a useful tool for stakeholders to identify potentially weak power grids and develop mitigation procedures beforehand. The advantage is that this algorithm can be used by specialists who do not have a comprehensive understanding of the GMD effect on power grid operation. Plain Language Summary Major solar storms can occur once every 150 years or so. For us on Earth, space weather can range from the beauty of an aurora borealis to the potentially damaging impact of solar storms on interconnected infrastructure. When solar storm happens, the sun shoots out very strong currents of magnetic energy into space. These currents can interfere with space-borne and ground-based technological systems. They can also disrupt many of the critical services on which modern society relies, so placing risk on financial markets, properties, life and health, etc. Multiple power system equipment damage from strong geomagnetic disturbance (GMD) can cause a large-scale and prolonged blackout. The ongoing development of ultrahigh-voltage grids, on the one hand, and the power grid equipment aging, on the other hand, result in the expansion of high-risk zones. Aimed at risk engineers and technical experts, this paper seeks to provide an algorithm for preliminary analysis of power grid robustness to GMD. The main advantage is that the developed algorithm can be directly used by the electric utilities who even may not have a comprehensive understanding of the GMD physics.
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