Numerički algoritmi u zaštiti elektroenergetskog sustava

scientific master's theses

• Title (english): Numerical algorithms for power system protection
• Author: Juraj Havelka
• Mentor: Ante Marušić (mentor)
• Committee member: Ante Marušić (predsjednik povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2002, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Power Engineering
• Universal decimal classification (UDC): 621.3 - Electrical engineering

Abstract

U uvodnom dijelu magistarskog rada obrađena je teorija uzimanja uzoraka te razne numeričke metode za analizu izmjernog signala pomoću računala, kao što su numeričko deriviranje i integriranje, interpolacijske formule, Fourierova transformacija u diskretnom obliku i tehnike uokvirivanja i digitalnog filtriranja signala.
Zatim su izvedeni brojni numerički zaštitni algoritmi i ispitani pomoću simulacijskog programa ALGORITAM. Nakon ispitivanja pomoću simulacije izvršeno je i ispitivanje sklopovlja i algoritama u realnom vremenu te se pokazalo da i u tom slučaju rade isto kao i u simulaciji.
U zadnjem dijelu rada algoritmi su bili ispitani sa simuliranim kratkim spojem i nakon toga s pravim kratkim spojem koji je bio izveden u laboratoriju Zavoda za visoki napon i energetiku na Fakultetu elektrotehnike i računarstva Sveučilišta u Zagrebu.

Abstract (english)

The introductory section of the paper discusses the sampling theory and different numerical methods for signal analysis, like, for instance, numerical differentiation and integration, interpolation formulas, discrete Fourier transformation, and windowing and digital signal filtering techniques. Many numerical protection algorithms were derived and tested by ALGORITAM simulation program. Following investigation by simulation, the testing of hardware and algorithms carried out in real time showed that they operate in the same way as in simulation. The final section of the paper describes the testing of algorithms with simulated short circuit and real short circuit, performed at the laboratory of Departmet of Power Systems, Zagreb University Faculty of Electrical Engineering and Computing.

• Keywords: digitalna zaštita EES-a; algoritmi zaštite; digitalna obrada signala; kratki spoj; rad u realnom vremenu; DSP sklopovlje
• Keywords (english): power systems digital protection; protection algorithms; digital signal processing; short circuit; real time issues; DSP hardware
• Language: croatian
• URN:NBN: urn:nbn:hr:168:549610
• Study programme: Title: Postgraduate master programme in electrical engineering; Study programme type: university; Study level: postgraduate; Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
• Catalog URL: http://lib.fer.hr:8080/cgi-bin/koha/catalogue/detail.pl?biblionumber=29015&searchid=./HS9oAY
• Type of resource: Text
• Extent: 194 str. ; 30 cm
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-05-13 10:27:10