Analiza industrijske elektroenergetske mreže za potrebe podešenja relejne zaštite

master's thesis

• Title (english): Analysis of industrial power system network for needs of relay protection setings
• Author: Lara Buljan
• Mentor: Ivica Pavić (mentor)
• Committee member: Ivica Pavić (predsjednik povjerenstva)
• Committee member: Juraj Havelka (član povjerenstva)
• Committee member: Ninoslav Holjevac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2021-02-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Potrebe za električnom energijom za napajanje potrošača industrijskih postrojenja najčešće se podmiruju iz distribucijske ili prijenosne mreže, a često ta postrojenja imaju i vlastitu energanu. Time je omogućen paralelni rad jednog ili više generatora s mrežom elektroprivrede - osigurana je veća pouzdanost napajanja, ali povećan je broj mogućih pogonskih stanja te se komplicira vođenje takvog sustava i podešenje njegove zaštite. Neispravan isklop u industrijskim postrojenjama često je ekonomski neprihvatljiv, te je pravilan odabir zaštite bitan za normalan rad takvog relativno kompliciranog sustava. Za pravilno podešenje zaštite prethodno se odrađuju proračuni kratkog spoja i praznog hoda, modeliraju se svi elementi i tereti u nekom od programskih paketa. Na temelju tih simulacija daju se prijedlozi osnovnih zaštita elemenata postrojenja.

Abstract (english)

Electrical energy supply needs for industrial plant consumers are most often
met from the distribution or transmission network, but usually, those plants have their own energy supply. This enables parallel operation of one or more generators with the public network - greater power reliability is ensured, but the number of possible operating states is increased which further complicates power system management and relay protection settings. Faulty switching in industrial plants is often economically unacceptable and correct relay protection selection is very important for the normal operation of such a complicated system. For correct protection settings, short circuit and load flow analysis must be conducted, along with element modelling in one of the available software packages. Based on these simulations, proposals for the basic protection of plant elements are given.

• Keywords: relejna zaštita; industrijska mreža; kratki spoj; tokovi snaga; NEPLAN
• Keywords (english): relay protection; industrial network; short circuit; load flow; NEPLAN
• Language: croatian
• URN:NBN: urn:nbn:hr:168:448772
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-13 09:49:11