Design, construction and study of small scale vertical axis wind turbine based on a magnetically levitated axial flux permanent magnet generator

2017 ◽  
Vol 101 ◽  
pp. 286-292 ◽  
Author(s):  
Ghulam Ahmad ◽  
Uzma Amin
Keyword(s):  
Wind Turbine ◽  
Permanent Magnet ◽  
Vertical Axis ◽  
Small Scale ◽  
Vertical Axis Wind Turbine ◽  
Axial Flux ◽  
Magnetically Levitated ◽  
Design Construction ◽  
Permanent Magnet Generator

Implementation of a Coreless Axial-Flux PM Generator for Vertical-Axial Wind Turbine

2013 ◽  
Vol 694-697 ◽  
pp. 3273-3278
Author(s):  
Zwe Lee Gaing ◽  
Guan Jie Wnag ◽  
Jui An Chiang
Keyword(s):  
Taguchi Method ◽  
Wind Turbine ◽  
Fuzzy Inference ◽  
Vertical Axis ◽  
Geometric Parameters ◽  
Small Scale ◽  
Direct Drive ◽  
Induced Voltage ◽  
Vertical Axis Wind Turbine ◽  
Axial Flux

In this paper, a rigorous and efficient approach, using the fuzzy-Inference Taguchi method with the multiple performance characteristics index (MPCI), is employed for obtaining the rigorous design of a small-scale direct-drive coreless axial-flux permanent-magnet (AFPM) generator for a vertical-axis wind turbine (VAWT) with both larger induced voltage and higher efficiency. The proposed method first establishes the orthogonal array (OA) recommended by the Taguchi method, then multiple targets are coordinated by the fuzzy inference mechanism to obtain a better combination of geometric parameters for achieving multiple quality targets. The three-dimensional (3-D) electromagnetic finite element method (FEM) is used as the tool for analyzing the performance of the coreless AFPM generator. The results have shown the proposed method can obtain the suitable generators geometric parameters for enhancing the induced voltage of the generator while keeping efficiency as high as possible under the rated speed.

scholarly journals Improved design of axial flux permanent magnet generator for small-scale wind turbine

2018 ◽  
Vol 26 (6) ◽  
pp. 3085-3100
Author(s):  
Mojtaba ELDOROMI ◽  
Sajjad TOHIDI ◽  
Mohammad Reza FEYZI ◽  
Naghi ROSTAMI ◽  
Reza EMADIFAR
Keyword(s):  
Wind Turbine ◽  
Permanent Magnet ◽  
Small Scale ◽  
Axial Flux ◽  
Improved Design ◽  
Permanent Magnet Generator

Computational fluid dynamic analysis of roof-mounted vertical-axis wind turbine with diffuser shroud, flange, and vanes

2018 ◽  
Vol 42 (4) ◽  
pp. 404-415
Author(s):  
H. Abu-Thuraia ◽  
C. Aygun ◽  
M. Paraschivoiu ◽  
M.A. Allard
Keyword(s):  
Wind Turbine ◽  
Urban Areas ◽  
Guide Vane ◽  
Fluid Dynamic ◽  
Vertical Axis ◽  
Power Coefficient ◽  
Small Scale ◽  
Vertical Axis Wind Turbine ◽  
Guide Vanes ◽  
Turbine Design

Advances in wind power and tidal power have matured considerably to offer clean and sustainable energy alternatives. Nevertheless, distributed small-scale energy production from wind in urban areas has been disappointing because of very low efficiencies of the turbines. A novel wind turbine design — a seven-bladed Savonius vertical-axis wind turbine (VAWT) that is horizontally oriented inside a diffuser shroud and mounted on top of a building — has been shown to overcome the drawback of low efficiency. The objective this study was to analyze the performance of this novel wind turbine design for different wind directions and for different guide vanes placed at the entrance of the diffuser shroud. The flow field over the turbine and guide vanes was analyzed using computational fluid dynamics (CFD) on a 3D grid for multiple tip-speed ratios (TSRs). Four wind directions and three guide-vane angles were analyzed. The wind-direction analysis indicates that the power coefficient decreases to about half when the wind is oriented at 45° to the main axis of the turbine. The analysis of the guide vanes indicates a maximum power coefficient of 0.33 at a vane angle of 55°.

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