文档介绍：Experimental Thermal and Fluid Science 32 (2008) 1723–1730
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Experimental Thermal and Fluid Science
journal homepage: ate/etfs
Design of a 3 kW wind turbine generator with thin airfoil blades
Kazumasa Ameku 1, Baku M. Nagai 1, Jitendro Nath Roy *
Faculty of Mechanical Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
article info abstract
Article history: Three blades of a 3 kW prototype wind turbine generator were designed with thin airfoil and a tip speed
Received 16 November 2007 ratio of 3. The wind turbine has been controlled via two control methods: the variable pitch angle and by
Received in revised form 11 June 2008 regulation of the field current of the generator and examined under real wind conditions. The character-
Accepted 21 June 2008
istics of the thin airfoil, called ‘‘Seven arcs thin airfoil” named so because the airfoil posed of seven
circular arcs, are analyzed with the airfoil design and analysis program XFOIL. The thin airfoil blade is
designed and calculated by blade element and momentum theory. The performance characteristics of
Keywords:
the machine such as rotational speed, generator output as well as stability for wind speed changes are
Renewable energy
described. In the case of average wind speeds of 10 m/s and a maximum of 19 m/s, the automaticall