Management of the geomagnetically induced current risks on the national grid company's electric power transmission system

Erinmez, I.A.; Kappenman, John G.; Radasky, William A.

doi:10.1016/s1364-6826(02)00036-6

Cited by 108 publications

(75 citation statements)

References 2 publications

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“…Indeed, GIC in the Scottish Power grid were also enhanced at this time, with GIC at NEIL reaching approximately 25 A, during intensification of a western electrojet. We note that the peak GIC observed on 30 th October 2003 exceeds known GIC in the UK in previous storms (Beamish et al, 2002;Erinmez et al, 2002 For example, Webb and Allen (2004) highlight that a number of earth orbiting satellites suffered spontaneous Central Processor Unit resets and memory errors, and that the Federal Aviation Authority took the unprecedented step of issuing an alert to airline passengers regarding the possibility of high radiation doses. Similarly, Barbieri and Mahmot (2004) detail both spacecraft anomalies and the operational effects of the space weather events.…”

Section: Introductionmentioning

confidence: 82%

Surface electric fields and geomagnetically induced currents in the Scottish Power grid during the 30 October 2003 geomagnetic storm

et al. 2005

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A surface electric field model is used to estimate the UK surface E-field during the 30 th October 2003 severe geomagnetic storm. This model is coupled with a power grid model to determine the flow of geomagnetically induced currents (GIC) through the Scottish part of the UK grid. Model data are compared with GIC measurements at four sites in the power network. During this storm measured and modelled GIC levels exceeded 40A and the surface electric field reached 5V/km at sites in the UK (compared with quiet time levels of less than 0.1 V/km). The electric field and grid models now form part of a GIC monitoring, analysis and warning software package with web interface, developed for use by the grid operator. This package also contains a daily geomagnetic activity forecast service, a solar wind shock detector, for geomagnetic storm warning, and a near real time geomagnetic data stream, for storm monitoring. 2 AGU Index Terms

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Section: Introductionmentioning

confidence: 82%

Surface electric fields and geomagnetically induced currents in the Scottish Power grid during the 30 October 2003 geomagnetic storm

et al. 2005

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“…The UK national grid has experienced problems as a result of GIC such as large reactive power swings and transformer failures. Although there have been no severe consequences for customers, a prolonged geomagnetic disturbance may cause wider disruption (Erinmez et al, 2002). The Scottish power system has also experienced similar problems with, for example, GIC levels at monitoring sites rising to approximately 40 A during the Halloween storm of 30 October 2003.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of variations in the ground magnetic field during substorms at mid latitudes

et al. 2009

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Abstract. Substorms are known to cause geomagnetically induced currents (GIC) in power transmission lines through variations in the ground magnetic field. An improved knowledge and understanding of how the different phases of substorms affect the ground magnetic field will ultimately help to better understand how GIC arise. Although usually associated with high latitude power transmission networks, GIC potentially pose a risk to mid latitude networks such as the UK's National Grid. Using a list of substorm expansion phase onsets derived from auroral observations by the IMAGE-FUV satellite, this study examines 553 individual onsets. In order to cover mid latitudes, ground magnetometer data from the UK Sub-Auroral Magnetometer Network (SAMNET) are exploited. These high time resolution (5 s) data are used to study the ground magnetic field for an hour after onset, in particular the time derivative of the horizontal magnetic field, H. The data covers the period from 2000 to 2003 (just after solar maximum). Results are compared with a previous study of magnetic field variations at higher latitudes, using data with a much lower (1 min) cadence during substorms identified from geomagnetic indices during a period just after solar minimum.

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“…[12,13] The strongest perturbations of the geomagnetic field lead to disasters and failure of transformers, electronic equipment, and other ground-based technological systems. [14][15][16][17] Figure 2: The map of magnetic disturbances by the date of the space weather prediction center (swpc.noaa.gov) Furthermore, disturbances of the geomagnetic field can significantly affect human health and the biosphere as a whole. [18][19][20] However, some type's geomagnetic perturbations can play a positive role in the sphere of communication, and in-depth sensing of the earth, and prediction of earthquakes.…”

Section: Methodsmentioning

confidence: 99%

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Kuzichkin¹

2017

IJGP

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Background and Objective: The article discusses a data processing method for geomagnetic field of the earth on a distributed network of geophysical observatories. Method: The proposed method allows to detect and monitor irregular disturbances of the geomagnetic field, evaluate their options, determine the epicenter of the occurrence of disturbances and to estimate the parameters of the epicenter. For monitoring irregular disturbances in the Arctic the application of the developed method would prevent the effects of strong magnetic storms and substorms: Failure of cable lines, railway, accidents and damage to transformers, electronic equipment, and other groundbased technological systems. The article the effect of magnetic substorms on technical objects and biosphere of the Arctic area also examines, the organization of monitoring of geomagnetic disturbances describes, the mechanism of advanced and distributed processing irregular disturbances describes. Results: The results of approbation of the proposed methods and algorithms on a real example are this article. Conclusion: The application of the developed approaches allowed to increase the precision of determining the epicentral zone, the direction of the propagation and the intensity of geomagnetic disturbances. In addition, the ambiguity of the definition of the epicenter is completely gone, all other local extrema of the value of the correlation coefficient are not >0.78. At the same time, in the processing, the possible loss of the measuring point is due to a preselection of informative areas on them, by the primary processing of geomagnetic waves.

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Management of the geomagnetically induced current risks on the national grid company's electric power transmission system

Cited by 108 publications

References 2 publications

Surface electric fields and geomagnetically induced currents in the Scottish Power grid during the 30 October 2003 geomagnetic storm

Surface electric fields and geomagnetically induced currents in the Scottish Power grid during the 30 October 2003 geomagnetic storm

Characteristics of variations in the ground magnetic field during substorms at mid latitudes

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