Geomagnetically induced current sensitivity to assumed substation grounding resistance

Uyen Bui, Thomas J. Overbye, Komal Shetye, Hao Zhu, James Weber

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper considers the sensitivity of the calculated geomagnetically induced currents (GICs) in an electrical power system model to the assumed substation grounding resistances. Substation grounding resistances are not contained in standard power system models, and approximate values are often used in GIC studies. The paper provides an algorithm to quantify the degree of dependence of the GICs at any given substation. Case study results using the 20-bus GIC test system and a model of the North American Eastern Interconnect indicate that the substation GICs can be quite dependent on the assumed substation grounding values.

Original languageEnglish (US)
Title of host publication45th North American Power Symposium, NAPS 2013
DOIs
StatePublished - 2013
Event45th North American Power Symposium, NAPS 2013 - Manhattan, KS, United States
Duration: Sep 22 2013Sep 24 2013

Publication series

Name45th North American Power Symposium, NAPS 2013

Other

Other45th North American Power Symposium, NAPS 2013
Country/TerritoryUnited States
CityManhattan, KS
Period9/22/139/24/13

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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