NDLI: Modelling geomagnetically induced currents in Xinjiang 750kV power grid in China

Content Provider	IEEE Xplore Digital Library
Author	Chun-ming Liu Yun-long Li Lei Chen
Copyright Year	2013
Description	Author affiliation: Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China (Chun-ming Liu; Yun-long Li; Lei Chen)
Abstract	During geomagnetic storms, the geomagnetically induced currents (GIC) in the power grid threaten the safe operation of equipments or even the whole power system. Large GIC have been observed in Chinese power grid in spite of locating in mid-low latitude. The problem of GIC is considered to be more serious in Northwest 750kV power grid due to the higher latitude of the location, higher conductivity of the power lines, and the lower conductivity of the earth. This paper has introduced a case study of modeling the GIC in Xinjiang 750kV power grid. The GIC driven by a uniform electric filed with 1V/km and GIC under the strong storms on 9-10 November 2004 are both calculated to evaluate the influence of magnetic storms on the power grid. The result shows that the GIC at some nodes exceed safety limits when strong magnetic storms occur, which implies the vulnerability of this power grid.
Sponsorship	IEEE Power Energy Soc.
Starting Page	1
Ending Page	5
File Size	1748079
Page Count	5
File Format	PDF
ISBN	9781479913039
ISSN	19449925
DOI	10.1109/PESMG.2013.6672378
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-21
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Observatories Power grids Substations layered earth model geomagnetic induced currents(GIC) magnetic storm power grid
Content Type	Text
Resource Type	Article

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