Dinamički model vjetroelektrana s frekvencijskim pretvaračima

master's thesis

• Title (english): Dynamic model of wind farms with frequency converters
• Author: Filip Stojanović
• Mentor: Marko Delimar (mentor)
• Committee member: Marko Delimar (predsjednik povjerenstva)
• Committee member: Juraj Havelka (član povjerenstva)
• Committee member: Goran Grdenić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2020-07-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U posljednjih desetak godina proizvodnja električne energije u vjetroelektranama bilježi u Europskoj uniji strelovit rast. Vjetroelektrane tako i u Hrvatskoj čine sve značajniji udio u proizvodnji električne energije. Gotovo sve nove vjetroelektrane opremljene su frekvencijskim pretvaračima kojima su prevladani neki nedostaci ranijih tehnologija.
U radu su opisane prednosti koje su ostvarene primjenom frekvencijskih pretvarača u vjetroagregatima u odnosu na ranije tehnologije vjetroagregata. Zatim je detaljno opisan matematički model vjetroelektrane za potrebe dinamičkih proračuna u mreži za dva tipa vjetroagregata: dvostruko napajani asinkroni generator i sinkroni generator s permanentnim magnetima. U praktičnom dijelu, opisani modeli su implementirani u alatu za matematičko modeliranje i simulirane su regulacijske mogućnosti ovih vjetroagregata u elektroenergetskoj mreži.

Abstract (english)

In the last decade, the production of electricity in wind power plants has grown rapidly in the European Union. Wind power plants in Croatia are also increasingly important in the production of electricity. Almost all new wind power plants are equipped with frequency converters that have overcome some of the shortcomings of earlier technology.
This paper describes the advantages achieved by appropriate frequency converters in wind turbines compared to previous wind turbine technologies. Then, a mathematical model of wind generators with dynamic calculations is described in details for two types of wind turbines: double-feed asynchronous generator (DFIG) and a synchronous generator with permanent magnets (PMSG). In the practical part, the described models are implemented in the tool for mathematical modeling and control possibilities of wind turbines in power grid are simulated.

• Keywords: Vjetroelektrane; Obnovljivi izvori; Sinkroni generator s permanentnim magnetima; Dvostruko napajani asinkroni generator
• Keywords (english): Wind power plants; Renewable energy; Permanent magnet synchronous generator; Double-fed asynchronous generator
• Language: croatian
• URN:NBN: urn:nbn:hr:168:332573
• 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 09:21:46