scholarly journals Extended study of extreme geoelectric field event scenarios for geomagnetically induced current applications

Space Weather ◽  
2013 ◽  
Vol 11 (3) ◽  
pp. 121-131 ◽  
Author(s):  
Chigomezyo M. Ngwira ◽  
Antti Pulkkinen ◽  
Frederick D. Wilder ◽  
Geoffrey Crowley
Keyword(s):  
Geoelectric Field ◽  
Induced Current ◽  
Geomagnetically Induced Current ◽  
Extended Study ◽  
Field Event

scholarly journals Measurement of geomagnetically induced current (GIC) around Tokyo, Japan

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Shinichi Watari ◽  
Satoko Nakamura ◽  
Yusuke Ebihara
Keyword(s):  
Solar Flare ◽  
Geomagnetic Storms ◽  
Power Grids ◽  
Geomagnetic Variation ◽  
Induced Current ◽  
Interplanetary Shocks ◽  
Geomagnetic Disturbances ◽  
Geomagnetically Induced Current ◽  
Middle Latitudes ◽  
Sudden Commencements

AbstractWe need a typical method of directly measuring geomagnetically induced current (GIC) to compare data for estimating a potential risk of power grids caused by GIC. Here, we overview GIC measurement systems that have appeared in published papers, note necessary requirements, report on our equipment, and show several examples of our measurements in substations around Tokyo, Japan. Although they are located at middle latitudes, GICs associated with various geomagnetic disturbances are observed, such as storm sudden commencements (SSCs) or sudden impulses (SIs) caused by interplanetary shocks, geomagnetic storms including a storm caused by abrupt southward turning of strong interplanetary magnetic field (IMF) associated with a magnetic cloud, bay disturbances caused by high-latitude aurora activities, and geomagnetic variation caused by a solar flare called the solar flare effect (SFE). All these results suggest that GIC at middle latitudes is sensitive to the magnetospheric current (the magnetopause current, the ring current, and the field-aligned current) and also the ionospheric current.

scholarly journals Geomagnetically Induced Current Model Validation From New Zealand's South Island

Space Weather ◽  
2020 ◽  
Vol 18 (8) ◽  
Author(s):  
T. Divett ◽  
D. H. Mac Manus ◽  
G. S. Richardson ◽  
C. D. Beggan ◽  
C. J. Rodger ◽  
...  
Keyword(s):  
Model Validation ◽  
Current Model ◽  
Induced Current ◽  
Geomagnetically Induced Current

scholarly journals Long-term geomagnetically induced current observations in New Zealand: Earth return corrections and geomagnetic field driver

Space Weather ◽  
2017 ◽  
Vol 15 (8) ◽  
pp. 1020-1038 ◽  
Author(s):  
Daniel H. Mac Manus ◽  
Craig J. Rodger ◽  
Michael Dalzell ◽  
Alan W. P. Thomson ◽  
Mark A. Clilverd ◽  
...  
Keyword(s):  
New Zealand ◽  
Geomagnetic Field ◽  
Induced Current ◽  
Geomagnetically Induced Current

Effect of load current on leakage flux of transformer with geomagnetically induced current

2010 ◽  
Vol 21 (1) ◽  
pp. 165-173 ◽  
Author(s):  
Bing Zhang ◽  
Yilu Liu ◽  
Lianguang Liu ◽  
Mark McVey ◽  
R. Matthew Gardner ◽  
...  
Keyword(s):  
Induced Current ◽  
Load Current ◽  
Geomagnetically Induced Current ◽  
Leakage Flux
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