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Evaluation and implementation of anti-islanding methods for converter-fed distributed generation

MScEng

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Main Author: Hobbs, Ivan Kevin
Other Authors: Beukes, H. J.
Format: Thesis
Language:English
Published: Stellenbosch : University of Stellenbosch 2009
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access_status_str Open Access
author Hobbs, Ivan Kevin
author2 Beukes, H. J.
author_browse Beukes, H. J.
Hobbs, Ivan Kevin
author_facet Beukes, H. J.
Hobbs, Ivan Kevin
author_sort Hobbs, Ivan Kevin
collection Thesis
dc_rights_str_mv University of Stellenbosch
description MScEng
format Thesis
id oai:scholar.sun.ac.za:10019.1/1559
institution Stellenbosch University (South Africa)
language English
last_indexed 2026-06-10T12:42:53.367Z
license_str Other — see source repository
provenance_str_mv Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository
publishDate 2009
publishDateRange 2009
publishDateSort 2009
publisher Stellenbosch : University of Stellenbosch
publisherStr Stellenbosch : University of Stellenbosch
record_format dspace
source_str SUNScholar — Stellenbosch University Repository
spelling oai:scholar.sun.ac.za:10019.1/1559 Evaluation and implementation of anti-islanding methods for converter-fed distributed generation Hobbs, Ivan Kevin Beukes, H. J. University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Grid tied converter Theses -- Electrical engineering Dissertations -- Electrical engineering Electric power distribution Electric power systems Voltage regulators Electrical and Electronic Engineering MScEng Thesis (MScEng (Electrical and Electronic Engineering))--Univerity of Stellenbosch, 2009. ENGLISH ABSTRACT: As the number of distributed generation units connected to a distribution network increase, the possibility of island formation increases. An island is formed when distributed generation units continue to energize local loads within a section of the grid, which has been disconnected from the main distribution network. These islands pose significant danger to maintenance personnel as well as to members of the public. In this study, an investigation is done into various anti-islanding methods. The modes of operation of these methods are discussed, as well as their strengths and weaknesses. The slip-mode frequency shift method and the Sandia voltage shift method, in combination with over/under voltage and frequency protection, are simulated and tested to confirm their functionality. The results obtained show that it is possible to prevent distributed generation units from energizing local loads when the grid is disconnected. AFRIKAANSE OPSOMMING: Die moontlike toekomstige toename in die aantal verspreide generasie eenhede gekoppel aan die verspreidings netwerk, verhoog die moontlikheid van eiland vorming. ‘n Eiland word gevorm wanneer verspreide generasie eenhede energie aan lokale laste voorsien nadat die netwerk ontkoppel is. Dit hou groot gevaar in vir onderhouds personeel asook vir die publiek. In die tesis word ‘n studie gedoen oor die verskillende metodes om die vorming van ongewensde eilande te voorkom. Die glipmode-frekwensieskuif metode en die Sandia spanningskuif metode word gekombineer met die oor/onder spanning en frekwensie beskerming metodes. Die kombinasie van metodes word dan gesimuleer en eksperimenteel getoets. Die verkrygde resultate toon dat dit moontlik is om die vorming van ongewensde eilande effektief te voorkom. 2009-11-25T11:56:44Z 2010-06-01T08:27:19Z 2009-11-25T11:56:44Z 2010-06-01T08:27:19Z 2009-12 Thesis http://hdl.handle.net/10019.1/1559 en University of Stellenbosch application/pdf Stellenbosch : University of Stellenbosch
spellingShingle Grid tied converter
Theses -- Electrical engineering
Dissertations -- Electrical engineering
Electric power distribution
Electric power systems
Voltage regulators
Electrical and Electronic Engineering
Hobbs, Ivan Kevin
Evaluation and implementation of anti-islanding methods for converter-fed distributed generation
title Evaluation and implementation of anti-islanding methods for converter-fed distributed generation
title_full Evaluation and implementation of anti-islanding methods for converter-fed distributed generation
title_fullStr Evaluation and implementation of anti-islanding methods for converter-fed distributed generation
title_full_unstemmed Evaluation and implementation of anti-islanding methods for converter-fed distributed generation
title_short Evaluation and implementation of anti-islanding methods for converter-fed distributed generation
title_sort evaluation and implementation of anti islanding methods for converter fed distributed generation
topic Grid tied converter
Theses -- Electrical engineering
Dissertations -- Electrical engineering
Electric power distribution
Electric power systems
Voltage regulators
Electrical and Electronic Engineering
url http://hdl.handle.net/10019.1/1559
work_keys_str_mv AT hobbsivankevin evaluationandimplementationofantiislandingmethodsforconverterfeddistributedgeneration