Speed and torque control strategies for loss reduction of vertical axis wind turbines

Michael Argent, Alasdair McDonald, Bill Leithead, Alexander Giles

Research output: Contribution to conferencePoster

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Abstract

Modelling Generator Losses due to intrinsic torque cycling for Direct Drive Permanent Magnet Generator in Offshore VAWT. Previous work established relationships for Copper & Iron losses based on cyclic variation of torque and rotor speed based on chosen torque control strategy (defined by q ratio). Varying mechanical torque modelled in terms of Fourier harmonics. This work looks into effect of varying rotor speed on the aerodynamic wake (from the VAWT rotor blades) and the inefficiencies that manifest in additional generator losses. Work presented is part of 3 year PhD into VAWT Drivetrains.
Original languageEnglish
Number of pages1
Publication statusAccepted/In press - 5 Oct 2016
EventThe Science of Making Torque from Wind 2016 - Technische Universität München (TUM), Campus Garching, MUNICH, Germany
Duration: 5 Oct 20167 Oct 2016
Conference number: 6
https://torque2016.conferenceseries.iop.org/

Conference

ConferenceThe Science of Making Torque from Wind 2016
Abbreviated titleTORQUE 2016
CountryGermany
CityMUNICH
Period5/10/167/10/16
Internet address

Keywords

  • wind energy
  • vertical axis wind turbine
  • torque control
  • generator
  • drivetrain
  • loss reduction

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