{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-7YOX920J/73f3533e-b25d-438d-b778-0c639abf3005/HTML","dcterms:extent":"29 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-7YOX920J/bce654c9-2230-4bd0-add2-1a9ba6de38f0/PDF","dcterms:extent":"206 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-7YOX920J/558cb5ec-d5d1-4d65-b4ba-3ee60aae18ea/TEXT","dcterms:extent":"24 KB"}],"edm:TimeSpan":{"@rdf:about":"2006-2025","edm:begin":{"@xml:lang":"en","#text":"2006"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-7YOX920J","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-0y5dimiu"},{"@xml:lang":"sl","#text":"Elektrotehniški vestnik"}],"dcterms:issued":"2008","dc:creator":["Blažič, Boštjan","Matvoz, Dejan","Papič, Igor"],"dc:format":[{"@xml:lang":"sl","#text":"številka:1/2"},{"@xml:lang":"sl","#text":"6 strani"},{"@xml:lang":"sl","#text":"letnik:75"},{"@xml:lang":"sl","#text":"str. 18-23"}],"dc:identifier":["ISSN:0013-5852","ISSN:2232-3236","COBISSID:29621253","URN:URN:NBN:SI:doc-7YOX920J"],"dc:language":"sl","dc:publisher":{"@xml:lang":"sl","#text":"Elektrotehniška zveza Slovenije"},"dc:subject":[{"@xml:lang":"sl","#text":"električna omrežja"},{"@xml:lang":"sl","#text":"fliker"},{"@xml:lang":"sl","#text":"nihanje napetosti"},{"@xml:lang":"sl","#text":"prenosno omrežje"},{"@xml:lang":"sl","#text":"serijska dušilka"},{"@xml:lang":"sl","#text":"statični kompenzatorji"}],"dcterms:temporal":{"@rdf:resource":"2006-2025"},"dc:title":{"@xml:lang":"sl","#text":"Analiza ukrepov za zmanjšanje flikerja v prenosnem omrežju Slovenije|"},"dc:description":[{"@xml:lang":"sl","#text":"In the paper we evaluate different solutions for mitigating fliker which is giving rise to serious problems in the Slovenian transmission network. Fliker, which is known to be one of the major disturbances affecting the voltage quality, is in Slovenia caused by three large arc furnaces located at the ironworks of Jesenice, Ravne and Štore. According to the standard SIST EN 50160 1, fliker at the transmission level makes it difficult, or even impossible, to maintain an adequate voltage quality at the distribution level.In order to solve the issue, we started by implementing in PSCAD a simulation model of the Slovenian transmission network (Fig. 1). Additionally to the basic network elements we also developed an arc furnace model and an IEC flicker meter model 2 - 4. To allow for flicker compensation, we used our static var compensator (SVC) and static compensator (STATCOM) mcidels (Figs. 2 and 3). With the network model we tried to capture as much as possible of the real network conditions 2. Thus obtained flicker values are given in the first column of Table 1. Solutions enabling flicker mitigation can be divided into two groups, Le. system solutions and compensation solutions. The first group involves changes in the network topology and network elements, whereas the second group foresees solutions achieved by using devices permitting compensation of the fluctuating reactive power. By using STATCOM for the case of the Ravne arc-furnace compensation (Fig. 4) 5,the reactive power from the network is close to zero. The ultimate result is reduced fluctuation of the network voltage and consequently also lower flicker. In our investigation of the possible measures for flicker mitigation,we took into account also the cost and practical feasibility aspects of the various available solutions"},{"@xml:lang":"sl","#text":"Visoke jakosti flikerja, ki nastopajo v večjem delu prenosnega omrežja Slovenije, onemogočajo zagotavljanje ustrezne kakovosti napetosti v distribucijskih omrežjih. Glavni vir flikerja so tri obločne peči, ki obratujejo v jeklarnah Jesenice, Ravne in Štore. V članku predstavljamo in analiziramo dve različni možnosti za zmanjšanje vrednosti flikerja v prenosnem omrežju Slovenije. Prva možnost so sistemski ukrepi, s katerimi spreminjamo topologijo ali elemente omrežja, druga pa dinamična kompenzacija, ki jo dosežemo s pomočjo statičnega kompenzatorja ali statičnega var kompenzatorja. Učinkovitost rešitev ocenjujemo z uporabo simulacijskega modela prenosnega omrežja, izdelanega v programskem paketu PSCAD. V sklepnem delu našega članka predlagamo celovito rešitev za znižanje flikerja v prenosnem omrežju na vrednost, ki omogoča zagotavljanje ustrezne kakovosti napetosti na nižjih napetostnih ravneh. Pri iskanju rešitve smo upoštevali veljavna tehnična in ekonomska merila ter možnost izvedljivosti konkretnih investicij"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-7YOX920J","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-7YOX920J"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-7YOX920J/bce654c9-2230-4bd0-add2-1a9ba6de38f0/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Elektrotehniška zveza Slovenije"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-7YOX920J/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-7YOX920J"}}}}