Optimalno upravljanje sustavom zakretanja gondole vjetroagregata

master's thesis

• Title (english): Optimal control of a wind turbine yaw system
• Author: Ivan Martinović
• Mentor: Nedjeljko Perić (mentor)
• Committee member: Nedjeljko Perić (predsjednik povjerenstva)
• Committee member: Željko Ban (član povjerenstva)
• Committee member: Mato Baotić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2014-07-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Porast dimenzija vjetroagregata uzrokovao je povećanje opterećenja koja se javljaju na cijeloj konstrukciji vjetroagregata. U radu su opisane pojave koje dovode do tih neželjenih opterećenja. Kao referentni model vjetroagregata na temelju kojeg se obavljala identifikacija modela potrebnog za upravljanje korišten je model implementiran u programskom alatu GH Bladed. Nadalje je opisan sustav za zakretanje gondole vjetroagregata. Ovaj sustav ima zadatak pozicionirati ravninu rotora okomito prema vjetru s ciljem maksimalnog iskorištenja energije uz minimizaciju zamora koji se javlja kad je sustav isključen, ali i uslijed samog zakretanja. U svrhu postizanja tog cilja u ovom je radu opisana sinteza sustava optimalnog upravljanja zakretanjem gondole vjetroagregata. Simulacijski rezultati su pokazali zadovoljavajuće vladanje sustava.

Abstract (english)

The increase in size of wind turbines has caused an increase in loads throughout the wind turbine system. This paper describes the phenomena that lead to these unwanted loads. A model implemented in software tool GH Bladed has been used as a reference model of wind turbine on the basis of which identification was done. Parts of yaw system are described. This system has the task to position the rotor plane perpendicular to the wind, with the aim of maximizing received energy while minimizing fatigue that occurs when the yaw system is off, but also due to the rotation. In order to achieve this goal, this paper describes the synthesis of yaw system optimal control. Simulation results showed satisfactory behavior of the system.

• Keywords: Vjetroagregat; Odstupanje smjera vjetra; Zamor; Miner; Rainflow; Ekvivalentno opterećenje; Zakretanje gondole; Optimalno upravljanje
• Keywords (english): Wind turbine; Yaw angle; Fatigue; Miner; Rainflow; Damage equivalent load; Yaw system; Optimal control
• Language: croatian
• URN:NBN: urn:nbn:hr:168:524935
• 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 10:30:21