A Test Case for the Calculation of Geomagnetically Induced Currents

Geomagnetically induced currents (GICs) in power systems can be attributed to problems ranging from transformer overheating, misoperation of protective relays, and voltage instability. The assessment of the geomagnetic hazard to power systems requires accurate modeling of the GICs that are expected...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power delivery 2012-10, Vol.27 (4), p.2368-2373
Main Authors: Horton, R., Boteler, D. H., Overbye, T. J., Pirjola, R. J., Dugan, R.
Format: Article
Language:English
Subjects:
Applied sciences
Computational modeling
Computer programs
Computer simulation
Connection and protection apparatus
Electric fields
Electric potential
Electric power generation
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Geomagnetically induced currents (GICs)
Geomagnetism
Miscellaneous
Networks
Operation. Load control. Reliability
Power networks and lines
power system analysis
Power system planning
Power system stability
Power transmission lines
Studies
Substations
Transformers
Transformers and inductors
Windings
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Geomagnetically induced currents (GICs) in power systems can be attributed to problems ranging from transformer overheating, misoperation of protective relays, and voltage instability. The assessment of the geomagnetic hazard to power systems requires accurate modeling of the GICs that are expected to occur. However, to date, there are no publicly available test cases to validate software programs used to compute GIC. The following paper presents a hypothetical network that can be used as a test case for validating results from GIC modeling software. The network contains many features found in real networks such as: different voltage levels, two- and three-winding transformers and autotransformers, multiple transmission lines in the same corridorn and GIC blocking devices. GIC is calculated in the network for two geoelectric field scenarios: a 1 V/km uniform Northward electric field and a 1 V/km uniform Eastward electric field. Detailed simulation results and corresponding input data are provided for each of the two scenarios. Simulation results that are provided have been validated using four independent GIC modeling programs.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2012.2206407