On the Distance Protection of Power Grids dominated by Grid-forming Inverters

Nathan Baeckeland, Venkatramanan Devasahayam, Sairaj Dhople, Michael Kleemann

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

6 Scopus citations

Abstract

Grid-forming (GFM) inverter architectures have many promising features and offer several advantages over their grid-following (GFL) counterparts in the operation and control of inverter-dominated grids. However, operation of GFM inverters during unbalanced faults and their interaction with existing distance protection have been largely unexplored so far. In this paper, we investigate the performance of traditional distance protection schemes under the GFM paradigm. In particular, we focus on fault-loop impedance computation - which is one of the prevalent functions of contemporary distance protection and fault-zone identification - with different flavours of GFM control architectures. We uncover that GFM control with virtual-impedance limiting yields reliable results for fault-zone identification compared to other alternatives. To validate our analysis and findings, we furnish full-order EMT simulation results as well as experiments on a hardware-in-the-loop (HIL) test bed with a commercial protective relay.

Original languageEnglish (US)
Title of host publicationProceedings of 2022 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe 2022
PublisherIEEE Computer Society
ISBN (Electronic)9781665480321
DOIs
StatePublished - 2022
Event2022 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe 2022 - Novi Sad, Serbia
Duration: Oct 10 2022Oct 12 2022

Publication series

Name2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)

Conference

Conference2022 IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe 2022
Country/TerritorySerbia
CityNovi Sad
Period10/10/2210/12/22

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

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