Dynamic studies for 100% converter-based Irish power system

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Title: Dynamic studies for 100% converter-based Irish power system
Authors: Zhao, XianxianFlynn, Damian
Permanent link: http://hdl.handle.net/10197/13089
Date: 2-Mar-2021
Online since: 2022-08-22T11:14:34Z
Abstract: Given increasing shares of wind and/or solar power in many power systems, the possibility of a 100% power converter-based system becomes more plausible. Consequently, the dynamic response of the Irish transmission system with 100% (grid-following and grid-forming) power converters under 3-phase faults is investigated. Time domain simulations show that when active or reactive current prioritisation limits are applied, grid-forming converters can introduce large high-frequency oscillations, but a scaling-down current limitation approach can help to avoid such problems. Furthermore, applying scaling-down current limits, together with freezing the virtual angular speed, for a grid-forming converter, can limit the current and enhance transient stability during faults. Finally, with modified controls applied to the grid-following converters, the grid-forming requirement can be reduced from approximately 40% to less than 30%, with the future Irish grid remaining robust against bolted 3-phase faults, and oscillations quickly damped out during and post fault.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: Institution of Engineering and Technology
Keywords: DampingPower generation faultsTime-varying networksPower generation control
DOI: 10.1049/icp.2021.1351
Other versions: https://rpg.theiet.org/
Language: en
Status of Item: Peer reviewed
Is part of: The 9th Renewable Power Generation Conference (RPG Dublin Online 2021)
Conference Details: The 9th Renewable Power Generation Conference (RPG 2021), Dublin, Ireland (held online), 1-2 March 2021
This item is made available under a Creative Commons License: https://creativecommons.org/licenses/by/3.0/ie/
Appears in Collections:Electrical and Electronic Engineering Research Collection

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