Abstract
Fast localization of earth faults in medium voltage grids is required in order to avoid subsequent faults and to quickly restore the normal grid operation. We propose a localization approach utilizing a signature database with high-resolution transient voltages. The database is created based on a digital twin of a live medium-voltage grid for which measurements of voltages during actual earth faults of known location are available. The robustness and accuracy of two different realizations of the signature based fault localization are investigated: (1) a comparison approach using a correlation metric; (2) a neural network that has been trained by the signatures provided by the digital twin. The performance of our approach is assessed based on artificially generated earth fault events as well as real field measurements from the electrical grid.
Original language | English |
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Title of host publication | The Twelfth ACM International Conference on Future Energy Systems |
Number of pages | 5 |
Publisher | Association for Computing Machinery |
Publication date | 22 Jun 2021 |
Pages | 249-253 |
ISBN (Print) | 978-1-4503-8333-2 |
DOIs | |
Publication status | Published - 22 Jun 2021 |
Event | 12th ACM International Conference on Future Energy Systems, e-Energy 2021 - Virtual, Online, Italy Duration: 28 Jun 2021 → 2 Jul 2021 |
Conference
Conference | 12th ACM International Conference on Future Energy Systems, e-Energy 2021 |
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Country/Territory | Italy |
City | Virtual, Online |
Period | 28/06/2021 → 02/07/2021 |
Sponsor | ACM SIGEnergy |
Series | e-Energy 2021 - Proceedings of the 2021 12th ACM International Conference on Future Energy Systems |
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Bibliographical note
Funding Information:This work has been cofinanced by the German Federal Ministry of Education and Research (BMBF) as part of the project 01IS18089 EDaF. The authors would like to thank the project participants for their input and feedback, in particular thanks to Markus Duchon (fortiss GmbH) and Ehsan Tafehi (formerly GridData GmbH).
Publisher Copyright:
© 2021 ACM.
Keywords
- digital twin
- earth fault localization
- electricity distribution grids
- signature comparison