Singular value decomposition in geomagnetically induced current validation

Maryam Kazerooni, Hao Zhu, Thomas J. Overbye

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

Abstract

Geomagnetically induced currents (GICs) can cause transformer half cycle saturation and consequently affect the power grid with harmonic currents and increased reactive power loss. This paper focuses on using transformer neutral GIC measurements to help validate the GIC models. A linear GIC model is presented that relates the geoelectric field input to the transformer neutral GICs. To validate this model, a temporal GIC matrix model is introduced and the singular value decomposition (SVD) is used for estimating the geoelectric field. The effectiveness of the approach is shown using a 20 bus test case. Finally, the GIC model is extended to account for nonuniform electric field and its accuracy is evaluated through SVD.

Original languageEnglish (US)
Title of host publication2015 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479917853
DOIs
StatePublished - Jun 23 2015
Externally publishedYes
Event2015 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015 - Washington, United States
Duration: Feb 18 2015Feb 20 2015

Publication series

Name2015 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015

Other

Other2015 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015
Country/TerritoryUnited States
CityWashington
Period2/18/152/20/15

Keywords

  • Geomagnetically induced currents
  • model validation
  • transmission system analysis

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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