Fault Approximation Tool for Grid-Connected Inverter-Interfaced Distributed Generators

Paper

Kennedy, Joel, Ciufo, Phil and Agalgaonkar, Ashish. 2014. "Fault Approximation Tool for Grid-Connected Inverter-Interfaced Distributed Generators." Abu-Siada, A. and Masoum, M. A. S. (ed.) 2014 Australasian Universities Power Engineering Conference (AUPEC 2014). Perth, Australia 28 Sep - 01 Oct 2014 Perth, Australia. https://doi.org/10.1109/AUPEC.2014.6966578
Paper/Presentation Title

Fault Approximation Tool for Grid-Connected Inverter-Interfaced Distributed Generators

Presentation TypePaper
AuthorsKennedy, Joel (Author), Ciufo, Phil (Author) and Agalgaonkar, Ashish (Author)
EditorsAbu-Siada, A. and Masoum, M. A. S.
Journal or Proceedings TitleProceedings of the 2014 Australasian Universities Power Engineering Conference (AUPEC 2014)
ERA Conference ID50279
Number of Pages6
Year2014
Place of PublicationPerth, Australia
ISBN9780646923758
Digital Object Identifier (DOI)https://doi.org/10.1109/AUPEC.2014.6966578
Web Address (URL) of Paperhttps://ieeexplore.ieee.org/document/6966578
Conference/Event2014 Australasian Universities Power Engineering Conference (AUPEC 2014)
Australasian Universities Power Engineering Conference
Event Details
2014 Australasian Universities Power Engineering Conference (AUPEC 2014)
Event Date
28 Sep 2014 to end of 01 Oct 2014
Event Location
Perth, Australia
Event Details
Australasian Universities Power Engineering Conference
AUPEC
Abstract

A novel fault approximation tool (FAT) is presented for use in distribution networks with a high penetration of inverter-interfaced distributed generation. The FAT does not rely on balanced operation nor an absolute reference point for voltage calculations, both of which are required for Newton-Raphson load flow calculations. Simulations show that the FAT provides an accurate representation of the transient and steady-state fault response for unbalanced faults when juxtaposed with a detailed small-signal model. The 'sub-transient' response of the inverter-interfaced distributed generation is omitted to remove data considered extraneous from the perspective of distribution line protection analysis. The FAT is not appropriate for analysing the efficacy of distributed generation local protection and is inappropriate for islanded applications. The FAT is designed explicitly for the purpose of utility line protection design and analysis.

KeywordsElectric equipment protection; Electric inverters; Electric load flow
ANZSRC Field of Research 2020400805. Electrical energy transmission, networks and systems
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Byline AffiliationsUniversity of Wollongong
Institution of OriginUniversity of Southern Queensland
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