Sustav zaštite od munje lopatica vjetroagregata

master's thesis

• Title (english): Lightning Protection of Wind Turbine Blades
• Author: Josip Ćurković
• 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: 2015-07-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Jedan od glavnih razloga oštećenja lopatica vjetroagregata su udari munja. Lopatice vjetroagregata mogu eksplodirati što stvara velike gubitke. Različite konfiguracije i materijal lopatice treba razmotriti u odnosu na štete munje. Kako vrh lopatice prelazi 100 metara iznad tla, broj udara munje se povećava. Lopatice vjetroagregata se rade od dielektričnih materijala s i bez metalnih dijelova. Lopatice vjetroagregata su velike šuplje konstrukcije izrađene od materijala poput staklenih vlakana ojačane plastikom, drva i drvnih laminata.
Cilj ovog rada je dati osnovne podatke i prijedlog zaštite od munja lopatice vjetroagregata. Provedena su razna ispitivanja i praćenja koja istražuju štetu na lopaticama kako bi dobili bolju metodu zaštite.
Ovaj rad sadrži rezultate istraživanja i određuje moguće uzroke šteta na lopaticama. Predložene su mjere zaštite od udara munje na lopatice vjetroagregata.

Abstract (english)

One of the main reasons for damage to the blades of wind turbines are lightning discharges. The blades of wind turbines can explode creating major losses. Various configurations and material of blades should be considered in relation to the damage of lightning. As the top blade is about 100 meters above the ground, the number of lightning strokes increase. Wind turbine blades are made of dielectric materials with and without metal parts. The blades of wind turbines are large hollow structures made of materials such as glass fiber reinforced plastic, wood and wood laminates.
The object of this paper is to provide basic information and proposals of protections against lightning for blades of wind turbines. There were carried out various tests and monitoring for investigating damage to the blades to get a better method of protection.
This paper summarizes the results of research and assess the possible patterns of damage to blades. Protective measures of lightning in wind turbine blades.

• Keywords: Vjetroagregat; atmosferska pražnjenja; sustav za lociranje munja; oštećenja lopatica; metode zaštite lopatica
• Keywords (english): wind turbine; atmosferic discharge; system for locating lightning; damage blades; methods of protection for blades
• Language: croatian
• URN:NBN: urn:nbn:hr:168:719534
• 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: 2018-02-06 08:22:29