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

Abstract

: Recently, much attention has been given to axial flux permanent magnet generators due to some advantagessuch as high efficiency, high power density, and higher torque compared to radial flux generators. In addition, increasednumber of poles makes them appropriate for low-speed applications such as wind power generators. In this study, anaxial flux permanent magnet synchronous generator with unique features such as high power density is designed forsmall-scale wind turbines. The structure of generator includes a rotor and a stator. The generator is designed and thenanalyzed by Flux 11.2 software. The analysis includes the effects of air gap distance change with considering wind speedvariations. Sinusoidal waveform of induction voltage with the acceptable harmonic characteristics confirms the optimizeddesign of the generator.