Geomagnetically induced currents: A measurement based inverse determination of earth impedances

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

Geomagnetically induced currents (GIC) can lead to serious disturbances in transmission grids. Arising problems range from high noise levels and reactive power consumption of transformers up to transformer outages and regional blackouts. To mitigate GICs effectively, simulation is an important aspect. However, incomplete electrical grid data in combination with discrete earth layer models lead to differences between measurement and simulation. In this article, we describe an inverse calculation method of the complex earth impedance, based on transformer neutral point measurements. We show that the resulting model leads to higher simulation accuracy. This calculation method may be used especially when earth layer data is missing or inaccurate.
Original languageEnglish
Title of host publication2021 56th International Universities Power Engineering Conference (UPEC)
Subtitle of host publicationPowering Net Zero Emissions, UPEC 2021 - Proceedings
Number of pages5
ISBN (Electronic)978-1-6654-4389-0
DOIs
Publication statusPublished - 31 Aug 2021
Event56th International Universities Power Engineering Conference: POWERING NET ZERO EMISSIONS POWERING NET ZERO EMISSIONS - Virtuell, United Kingdom
Duration: 31 Aug 20213 Sep 2021
https://upec2021.tees.ac.uk/

Conference

Conference56th International Universities Power Engineering Conference
Abbreviated titleUPEC 2021
Country/TerritoryUnited Kingdom
CityVirtuell
Period31/08/213/09/21
Internet address

Keywords

  • Earth impedance
  • GIC
  • Measurement
  • Simulation

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Electrical and Electronic Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Fields of Expertise

  • Sustainable Systems

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