Evaluation of Grid-Forming Converter's impact on distance protection performance
Liu, Di and Hong, Qiteng and Khan, Md Asif Uddin and Dyśko, Adam and Egea Alvarez, Agusti and Booth, Campbell (2022) Evaluation of Grid-Forming Converter's impact on distance protection performance. In: The 16th International Conference on Developments in Power System Protection, 2022-03-07 - 2022-03-10, Hilton Newcastle Gateshead.
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Abstract
Motivated by the net-zero carbon emission target, the GB transmission system has seen a massive increase in the amount of Converter Based Resources (CBRs). Grid-Forming Converters (GFMs) have attracted significant interests for supporting the future system operability with high penetration of renewables due to their various more desirable properties compared with Grid-Following Converters (GFLs), e.g., stronger capability to operate in weak grids. Recent research work has found that Fault-Ride Through (FRT) strategies of CBRs have significant impact on the distance protection performance, and comprised protection operation was observed when synchronous generation sources were replaced with CBRs. However, existing research work has mainly focused on the impact of the GFLs’ FRT on distance protection, while the impact of GFMs, which could have very different FRT strategies, has not been comprehensively investigated. In this paper, a GFM with two typically used FRT implementations, i.e., the current control based FRT and the virtual impedance based FRT, is developed in the Real-Time Digital Simulator (RTDS) and the impact of the two FRT methods on distance protection is investigated for both balanced and unbalanced fault conditions. By comparing the relay performance with two FRT strategies, it is found that the distance protection appears to have better performance in terms of faulty phase selection, accurate impedance measurement and impedance measurement stability when the virtual impedance-based FRT is adopted by the GFM.
ORCID iDs
Liu, Di ORCID: https://orcid.org/0000-0002-1180-5248, Hong, Qiteng ORCID: https://orcid.org/0000-0001-9122-1981, Khan, Md Asif Uddin ORCID: https://orcid.org/0000-0003-4958-7327, Dyśko, Adam ORCID: https://orcid.org/0000-0002-3658-7566, Egea Alvarez, Agusti ORCID: https://orcid.org/0000-0003-1286-6699 and Booth, Campbell ORCID: https://orcid.org/0000-0003-3869-4477;-
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Item type: Conference or Workshop Item(Paper) ID code: 79804 Dates: DateEvent10 March 2022Published10 January 2022AcceptedSubjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering Depositing user: Pure Administrator Date deposited: 03 Mar 2022 10:52 Last modified: 14 Oct 2024 00:49 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/79804