Optimal design of flux switching permanent magnet generatorbased on FEA and taguchi method for direct driven wind Turbins

Due to the unique structure of Flux Switching Permanent Magnet Generators, the interactionof permanent stator magnets and rotor teeth, the generated cogging torque is higher comparedto other permanent magnet machines, which increases torque ripple and produces vibration,noise and poor machine performance. Suitable design of machine structure reduces vibrationand noise of PMFSG and also improves generator performance and increases machinestrength, power and efficiency. Related studies show that PMFSG have highly efficient and anattractive option for wind turbine generator applications and small scale applications. That iswhy the cogging torque in these generators is very important. Therefore, in this paper, a fluxswitching permanent magnet generator with spoke arrangement and toothed rotor with asingle layer slot and a permanent magnet inside the stator were designed, which have lesscogging torque and higher output power. simulations have been performed with the twodimensional Finite Element Method and optimized by using Taguchi method. Optimal modeldesign will reduce cogging torque, reduce torque ripple and improve output power.

Keywords:

Cogging Torque , Finite Element Method , Flux Switching Generator , PermanentMagnet Spoke Arrangement , Taguchi Method