地磁暴对电力系统稳定性的影响

doi:10.19595/j.cnki.1000-6753.tces.210086

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Abstract In view of the increase of geomagnetic storms invading the power grid in middle and low latitudes in recent years and the blackout accident in Quebec caused by strong geomagnetic storm, it is necessary to analyze the impact of geomagnetic storms on the stable operation of power system. Constrained by various factors, the power system often operates in a state of extreme stability. The geomagnetically induced current (GIC) causes an increase in the reactive power loss (GIC-Q) of the transformer. Whether the GIC-Q with the whole network clustering and volatility will increase the risk of system instability and whether the addition of the DC system will affect the anti-geomagnetic storm ability of the power grid has not been studied. From the perspective of power system stability, the probability distribution law of substation GIC-Q in long time scale is studied. Combined with the GIC benchmark network model, GIC-Q is added to the system on the basis of the original load, and the influence of geomagnetic storm on the probability stability of AC system and AC/DC hybrid system is analyzed.

Key words： Geomagnetic storms geomagnetically induced current-Q(GIC-Q) AC/DC hybrid system power system stability probability distribution

Received: 17 January 2021

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TM712

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	Wang Zezhong
	Si Yuan
	Liu Lianguang

Cite this article:

Wang Zezhong,Si Yuan,Liu Lianguang. Influence of Geomagnetic Storms on the Stability of Power System[J]. Transactions of China Electrotechnical Society, 2022, 37(7): 1780-1788.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210086 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I7/1780

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