scholarly journals Correction to “Measurements of geomagnetically induced current in a power grid in Hokkaido, Japan”

Space Weather ◽  
2009 ◽  
Vol 7 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
S. Watari ◽  
M. Kunitake ◽  
K. Kitamura ◽  
T. Hori ◽  
T. Kikuchi ◽  
...  
Keyword(s):  
Power Grid ◽  
Induced Current ◽  
Geomagnetically Induced Current

scholarly journals Simulation and Analysis of Geomagnetically Induced Current Levels in Shandong Power Grid

Space Weather ◽  
2021 ◽  
Author(s):  
Han Wang ◽  
Zan‐Yang Xing ◽  
Nanan Balan ◽  
Yan‐Ling Wang ◽  
Qing‐He Zhang ◽  
...  
Keyword(s):  
Power Grid ◽  
Induced Current ◽  
Geomagnetically Induced Current

Study on Variation Rate Characters of Mid-to-Low Latitude Area Geomagnetic Field during Geomagnetic Storms

2013 ◽  
Vol 448-453 ◽  
pp. 2125-2131
Author(s):  
Xiao Mao Wang
Keyword(s):  
Geomagnetic Field ◽  
Geomagnetic Storms ◽  
Power Grid ◽  
Geomagnetic Latitude ◽  
Induced Current ◽  
Low Latitude ◽  
Geomagnetically Induced Current ◽  
Faraday’S Law ◽  
Variation Rate ◽  
Measurement And Control

Geomagnetic field changes acutely during geomagnetic storms. According to Faraday's law of electromagnetic induction, the change of the geomagnetic field produces geomagnetically induced current (GIC) in power grid, which directly damages the power equipment and threatens safe operation of power grid. The more dramatically geomagnetic field changes, the bigger geomagnetically induced current in power grid becomes, and thus, the greater harm it brings to power grid. In this paper, based on the H and D components of recent geomagnetic storm data measured by several mid-to-low latitude geomagnetic observatories, the variation law of the amplitude of north-south and east-west geomagnetic component change rate (dX/dt and dY/dt) pulse with geomagnetic latitude was analyzed when geomagnetic field changed very severely. Finally, the possibilities of power grid in different direction affected by GIC with the change of latitude were discussed. The analysis results will contribute to the evaluation, measurement and control of GIC in Chinese current and future power grid.

scholarly journals Measurements of geomagnetically induced current in a power grid in Hokkaido, Japan

Space Weather ◽  
2009 ◽  
Vol 7 (3) ◽  
pp. n/a-n/a ◽  
Author(s):  
S. Watari ◽  
M. Kunitake ◽  
K. Kitamura ◽  
T. Hori ◽  
T. Kikuchi ◽  
...  
Keyword(s):  
Power Grid ◽  
Induced Current ◽  
Geomagnetically Induced Current

Comparison Study of the Geomagnetically Induced Current Level of Power Grid in Different Latitude

2012 ◽  
Vol 463-464 ◽  
pp. 305-309
Author(s):  
Fan Yang ◽  
Lian Guang Liu ◽  
Qi Li ◽  
Dong Mei Yang
Keyword(s):  
Power Grid ◽  
Current Level ◽  
Measure Data ◽  
Induced Current ◽  
Comparison Study ◽  
Electrical Parameters ◽  
Low Latitude ◽  
Geomagnetically Induced Current ◽  
Grid Topology ◽  
Magnetic Amplitude

Geomagnetically induced current (GIC) relates to factors such as magnetic amplitude, geotecture and structure of power grid. On the basis of geotecture, according to the geomagnetic storm data of Dec 2006, employing the plan wave method, this paper finish the calculation of GIC level of 2012 Beijing planning power gird, and compare the result to the measure data of Shanghe substation, in Yanghuai transmission system. The comparison shows that power grid is much more affected by geotecture, direction and length of transmission line, grid topology and electrical parameters in mid-low latitude area

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
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