Comparison and Analysis of Several Common Vertical Axis Wind Turbines for Distributed Energy Sources

Zheng Li; Weiqiang Qi; Qunjing Wang

doi:10.6180/jase.201812_21(4).0018

Comparison and Analysis of Several Common Vertical Axis Wind Turbines for Distributed Energy Sources

Zheng Li This email address is being protected from spambots. You need JavaScript enabled to view it.¹, Weiqiang Qi¹ and Qunjing Wang²

¹ School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang, P.R. China
² National Engineering Laboratory of Energy-saving Motor & Control Technique, Anhui University, Hefei, P.R. China

Received: November 27, 2017
Accepted: June 21, 2018
Publication Date: December 1, 2018

Download Citation: ||https://doi.org/10.6180/jase.201812_21(4).0018

ABSTRACT

Based on the 3D simulation and calculation module, three vertical axis wind turbines (VAWT) models will be presented in this paper. The flow field analysis of three models were studied by using ANSYS CFX and FLUENT modules, respectively. The differences between three wind turbine models are compared in different ways. The simulation results show that: through force analysis of the three models, it is concluded that the drag force of the turbines are greater than the lift force with the change of the tip speed ratio, the lift and drag force of the turbine horizontally placed are larger than that of the other two structures. Based on the study of the parameters about three models, the power coefficient (Cp) and torque coefficient (Ct) of the horizontal turbine are larger than the other two; in addition, the relative velocity and pressure of the wind turbines at different positions are analyzed and compared, the wake distribution of three models is preliminarily investigated. The results can provide reference for further research and optimization of the vertical axis wind turbines.

Keywords: Distributed Energy, VAWT, Flow Field, CFD

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