Experimental Study on the Performance of Small-Scale Wind Turbine Rotors

The paper presents the results of the research regarding the development and testing of small-scale wind turbine rotors, as well as aspects regarding their integration in power systems. Different wind rotors with diameters ranging from 524 mm to 620 mm have been designed in order to study the influence of the main parameters such as rotor diameter, blade chord length and pitch angle on the power output. The models have been made by 3D printing and were characterized by testing performed in an open circuit wind tunnel. For 10 m/s wind velocity, the maximum power output of the developed rotors is in the range of 34...48W. The experimental results revealed that the lower the pitch angle, the higher the starting velocity, turbine power, rotational speed and power coefficient.