A simple algorithm to modify an ordinary wind turbine blade to an adaptive one

Alireza Maheri*, Siamak Noroozi, Chris Toomer, John Vinney

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

This paper presents a simple algorithm to modify an ordinary blade to a bend-twist adaptive one. Through this algorithm the rotor radius, pre-twist and chord distributions of the original blade are modified and the optimum value of the induced twist due to elastic coupling will be predicted. Modifications to the original blade have been decided in a manner that limit the output power at its rated value and improve the average power of the wind turbine, while trying to reduce the negative effects on the blade size and loading. A simple but realistic model is introduced to estimate the induced twist in adaptive blades with bend-twist coupling. This model has been embedded in a BEMT-based rotor aerodynamic code to simulate the performance of horizontal axis wind turbines with adaptive blades. Results of the modifications to an approximation of a 2-blade AWT 27 wind turbine show that it could have an increase of about 13% in energy capture capabilities if it employs the adaptive blades based on the present modification.

Original languageEnglish
Title of host publicationEuropean Wind Energy Conference and Exhibition 2006, EWEC 2006
Pages1195-1202
Number of pages8
Volume2
Publication statusPublished - 2006
EventEuropean Wind Energy Conference and Exhibition 2006, EWEC 2006 - Athens, Greece
Duration: 27 Feb 20062 Mar 2006

Conference

ConferenceEuropean Wind Energy Conference and Exhibition 2006, EWEC 2006
CountryGreece
CityAthens
Period27/02/062/03/06

Keywords

  • Adaptive blade
  • Elastic coupling
  • Wind turbine

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    Maheri, A., Noroozi, S., Toomer, C., & Vinney, J. (2006). A simple algorithm to modify an ordinary wind turbine blade to an adaptive one. In European Wind Energy Conference and Exhibition 2006, EWEC 2006 (Vol. 2, pp. 1195-1202)