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Simulations of vertical axis wind turbines with PMSG and diode rectification to a mutual DC-bus
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
2017 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Transient simulations were performed with MATLAB Simulink on a mutual wind park topology, where three vertical axis wind turbines equipped with permanent magnet synchronous generators were connected to a mutual DC-bus through passive diode rectification. The aim with the work was to show the effects of two different kinds of loads on the system in respect to generator torque, rotor speed, produced power by the generators and the power on the DC-bus. The loads were a variable voltage source and a resistance with the value 2.0 Ω. It was shown that the transient behavior of the system in respect to both kinds of loads exhibited a high level of stability when the wind speed was altered. It was also shown that the system when equipped with a voltage source load began to oscillate with the natural frequency of a two mass rotating spring system if a sudden increase of the voltage made the DC-bus voltage larger than the peak of the internal induced voltage of the generators. Small variations of the DC voltage however exhibited a stable behavior.

Place, publisher, year, edition, pages
2017. , 31 p.
Series
TVE, TVE-F 17 002 maj
Keyword [en]
vertical axis wind turbines, VAWT, mutual DC-bus, mutual topology, simulations, diode rectification
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:uu:diva-323735OAI: oai:DiVA.org:uu-323735DiVA: diva2:1107220
Educational program
Master Programme in Engineering Physics
Supervisors
Examiners
Available from: 2017-06-14 Created: 2017-06-09 Last updated: 2017-06-14Bibliographically approved

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Electrical Engineering, Electronic Engineering, Information Engineering

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf