Load prediction for large-scaled HAWT based on a nonlinear structural-aerodynamic coupled method

Pin Lyu, Mingfu Liao, Yaojie Yin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Load prediction is becoming difficult due to the larger, lighter and more flexible blades of large-scaled horizontal axis wind turbine (HAWT), which leads to the nonlinear aeroelastic responses. Based on geometrically exact beam (GEB) theory for blade structural dynamics, a free-vortex wake (FVW) model for the prediction of unsteady aerodynamic loads and a partitioned loosely coupled methodology to exchange the data at the interface, a nonlinear FSI model has been developed in this study. Through comparison of NREL UAE Phase VI experimental data and the load predicted by the nonlinear model, the capability to accurately predict the aerodynamic loads is validated. The nonlinear beam model is also validated by several cases which all show a good agreement with results obtained by other authors. Finally, dynamic responses for NREL 5 MW RWT are estimated and compared with results from linear model. The results show that the coupled method is capable of evaluating blade nonlinear responses for large-scaled HAWT.

Original languageEnglish
Title of host publicationProceedings of the 5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2576-2580
Number of pages5
ISBN (Electronic)9781467371063
DOIs
StatePublished - 11 Mar 2016
Event5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015 - Changsha, China
Duration: 26 Nov 201529 Nov 2015

Publication series

NameProceedings of the 5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015

Conference

Conference5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015
Country/TerritoryChina
CityChangsha
Period26/11/1529/11/15

Keywords

  • Free-vortex wake
  • Geometrically exact beam
  • Large-scaled blade
  • Nonlinear response
  • Wind energy
  • Wind turbine

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