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, Xianxian; Flynn, 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:||Damping; Power generation faults; Time-varying networks; Power 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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