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  5. Grid-Forming Dynamic Stability under Large Fault Events – Application to 100% Inverter-based Irish Power System
 
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Grid-Forming Dynamic Stability under Large Fault Events – Application to 100% Inverter-based Irish Power System

File(s)
FileDescriptionSizeFormat
Download Contributed Book Chapter_Grid-forming dynamic stability .pdf1.88 MB
Author(s)
Zhao, Xianxian 
Flynn, Damian 
Uri
http://hdl.handle.net/10197/13109
Date Issued
2022
Date Available
02T12:05:55Z September 2022
Abstract
System stability is investigated for a future Irish grid consisting entirely of GFMIs under three-phase fault conditions with the inverters placed at existing locations for large-scale conventional generation. Electromagnetic transient (EMT) simulations showed that a 100% GFMI system, employing either droop control (or virtual synchronous machine), dispatchable virtual oscillator control, or a mix of both, under a combination of virtual impedance (VI) and scaling current saturation limiting control, is robust against 3-phase faults, with consistent performance being achieved, despite variations in fault location or inverter control methods. Freezing GFMIs virtual angular speed during the fault, for both VI and current scaling approaches, system transient stability is greatly enhanced. Time domain simulations also show that when active or reactive current prioritisation current saturation controls are applied that GFMIs can introduce large, high-frequency resonance oscillations, but a scaling-down current saturation approach can help to mitigate such problems by generating smoother current references.
Sponsorship
Science Foundation Ireland
Type of Material
Book Chapter
Publisher
Taylor & Francis
Keywords
  • Future power grids

  • Renewable energy

  • Grid forming requirem...

  • Virtual synchronous m...

  • Case studies

Web versions
https://www.routledge.com/search?kw=GFMIs_1:%20Grid-Forming%20Power%20Inverters:%20Control%20and%20Applications&sb=EOE2&publishedFilter=07/10/2022&pd=published&pg=1&pp=12&so=rel&view=grid
Language
English
Status of Item
Peer reviewed
Part of
Mohammed, N., Alhelou, H.H., Bahrani, B. (eds.). Grid-Forming Power Inverters: Control and Applications
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by/3.0/ie/
Owning collection
Electrical and Electronic Engineering Research Collection
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Mar 21, 2023
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