Modeling and Investigation of Blade Trailing Edge of Vertical Axis Offshore Wind Turbine

Lin Pan,Leichong Wang,Ze Zhu,Zhaoyang Shi

doi:10.3390/su131910905

Lin Pan, Leichong Wang + Show 2 more

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https://doi.org/10.3390/su131910905

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Abstract

In this study, the structure of the trailing edge of the vertical axis offshore wind turbine blade is modified. First, according to the method of parameterization, the offshore wind turbine model is established, and a series of characteristics of the offshore wind turbine are obtained. Second, we add flaps with different lengths to the trailing edge of NACA0021 airfoil to obtain different dynamic characteristics. The angle of the additional trailing edge flaps is modified. Finally, a simulation model for the modified airfoil of the vertical axis offshore wind turbine is reestablished, and the variable characteristics of the performance is studied. Through the optimization and analysis of the blade structure, this study has obtained the best parameters of the length and angle of the offshore wind turbine blade trailing edge flap. The optimization of the blade structure changes the flow field around the blade, which significantly improves the maximum wind energy capture rate and self-starting ability of the vertical axis offshore wind turbine.

Highlights

There are abundant wind resources on the earth, and offshore wind power generation is a hot topic
This study examines the H-type vertical axis offshore wind turbine and expounds the development history and research status of the vertical axis offshore wind turbine
The theories and commonly models used for the study of vertical axis offshore wind turbines are introduced, and the principles of the operation of vertical axis offshore wind turbines are explained

Summary

Introduction

There are abundant wind resources on the earth, and offshore wind power generation is a hot topic. The horizontal axis offshore wind turbine is named because the axis of rotation is parallel to the sea level, which is the horizontal direction. Because horizontal axis offshore wind turbines have high power and more comprehensive technology, scholars have done more research on horizontal axis offshore wind turbines before, and they are currently the mainstream models used in wind farms [1,2]. Hydrogen production from wind power is expected to accelerate offshore wind power to further reduce costs and enter the era of parity. The floating offshore wind turbines are located in the deep sea and have the advantages of abundant offshore

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