Indeks pouzdanosti energetskih transformatora

master's thesis

• Title (english): Health index of power transformers
• Author: Filip Mikulecky
• Mentor: Viktor Milardić (mentor)
• Committee member: Viktor Milardić (predsjednik povjerenstva)
• Committee member: Ivica Pavić (član povjerenstva)
• Committee member: Božidar Filipović-Grčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-07-07, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Kontinuirano povećanje starosti visokonaponske opreme u elektroenergetskim sustavima povećava rizik njihovih kvarova i predstavlja jedan od značajnijih problema u vidu pouzdanosti mreže. Zbog svoje brojnosti, kompleksnosti i cijene energetske transformatore nije moguće u kratkom roku zamijeniti novima, te je zbog toga nužno kontinuirano pratiti stanje transformatora u svrhu ekonomski isplativog vođenja mreže. Prirodno se zato nameće zaključak da je potrebno razviti modele koji će rangirati postojeće transformatore u sustavu s obzirom na njihovo stanje. Povratna informacija takvih modela mora biti sažeta, a uobičajeno je da se stanje uređaja valorizira brojem u rasponu od 0 do 100 koji nadalje nazivamo indeksom pouzdanosti. Treba naglasiti da indeks pouzdanosti ne predstavlja egzaktno stanje uređaja, već ga kvantificira na način da se može prezentirati i usporediti na razini populacije transformatora. To implicira da je indeks pouzdanosti relativan indikator stanja uređaja što je analizirano u nastavku rada.

Abstract (english)

Continuous increase in the age of high-voltage equipment in power systems increases the risk of their failures and represents one of the major problems in network reliability. Due to high operating numbers, complexity and price, power transformers can not be replaced in short term. It is therefore necessary to continuously monitor the state of the transformer for the purpose of economically profitable network management. Naturally, the conclusion is that it is necessary to develop models that will rank the existing transformers in the system in view of their condition. The feedback of such models must be summarized, and it is customary that the state of the device is valued by a number ranging from 0 to 100 which is further referred to as the health index. It should be emphasized that the health index does not represent the exact state of the device, but quantifies it in a way that it can be presented and compared at the level of the transformer fleet.

• Keywords: energetski transformator; indeks pouzdanosti; degradacijski mehanizmi; ispitivanja; kriteriji
• Keywords (english): power transformer; health index; degradation mechanism; testing; criteria
• Language: croatian
• URN:NBN: urn:nbn:hr:168:945689
• 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: 2019-03-13 23:05:52