5 International Anatolian Energy Symposium, Trabzon, Turkey, 24 - 25 March 2021, vol.1, no.1, pp.485-494
Wind energy and developments of wind turbine design are getting important today all around the world. To increase the efficiency of wind turbines, the scientists have many researches. One of these topics to increase the efficiency is vertical axis wind turbines, blades, and motors design. Also, the generated energy and connection to the grid are causes some problems and have to study. In this study, vertical axis wind turbine blades and developments to increase efficiency are investigated firstly. Design steps and magnetic equation of an axial flux, permanent magnets, coreless stator, and rotor designed for a small wind turbine application are investigated in this paper. Stator voltages depending on the magnetic flux distribution have been obtained for different operating speeds and load conditions. The stator voltages for the three-phase are rectified and connected to a buck-boost converter to regulate bus voltage. How electricity is connected to the grid or A DC bus is investigated and given a proposal with power electronic converters and simulated with MATLAB/Simulink.