Axial Flux Permanent Magnet Generator for Savonius Wind Turbine

Abstract

This paper present the axial flux permanent magnet generator for savonius wind turbine with structure is sample, not complicate and low cost. The generator is brushless to be no maintenance. The savonius wind turbine consist of flame, shaft, rotor and blade plastic tank. The generator consist of stator 9 coil with SWG#18 with 60 turns per coil and 2 rotor with plates which are magnetic neodymium nickelcoated type and magnetic field intensity is high 18 pcs with alternated north-south. The generator produce three phase alternating current at Y-stator winding. The experimental results at no-load speed 500 rpm produced phase voltage A, B and C equal to 91.9, 79.7 and 84.2 Vrms respectively and dc voltage 133.2 Vdc from three phase rectifier. The results at load 120 watt produced three phase power equal to 119.17 watt and dc voltage 68.8 Vdc. Besides, The experimental results at low speed 20, 40 and 60 rpm produced dc voltage equal to 12.8, 20.4 and 31.6 Vdc respectively. The results obtained from prototype have electric power energy to the future applications.