Structure Dynamic Analysis of a Horizontal Axis Wind Turbine System Using a Modal Analysis Method

Author:

Zhiquan Ye1,Haomin Ma1,Nengsheng Bao1,Yan Chen1,Kang Ding1

Affiliation:

1. Institute of Energy and Environment Science Shantou University, Shantou, 515063, P.R. China

Abstract

This paper considers the structural dynamic analysis of horizontal axis wind turbine (HAWT) rotor blades. Initially a blade from a 300 W machine was used, using both experimental and theoretical modal analyses. In the experiments, a DAS (Dynamic Signal Analysis and Fault Diagnosis System) was used to extract modal parameters by measuring vibrations at various locations along the blade surface. A finite element analysis (FEA) method was used for the theoretical modal analysis. Comparison of experiment and theory explains the low order vibration conditions. The effects of different constraint conditions of the FE model are discussed. Finally, theoretical modal analysis is used to analyze a 600 kW rotor blade. The results are compared with those calculated using ‘Bladed for Windows’ of Garrad Hassan and Partners Ltd (UK), and satisfactory agreement between them is obtained.

Publisher

SAGE Publications

Subject

Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment

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