A novel transverse flux permanent magnet generator with staggered stator-hoop and surface-mounted rotor-disk

A novel transverse flux permanent magnet generator (TFPMG) with staggered stator-hoop and surface-mounted rotor-disk was proposed to achieving the demand of low speed and larger torque capability of the wind power generation. The three-dimensional (3D) finite element analysis (FEA) is employed to compute the electromagnetic characteristics of flux density, EMF, winding inductance, and cogging torque of the generator. The theoretical feasibility and operation principles of the designed scheme are also analysed and described. The FEM results show that the power density of the generator can be significantly increased due to the structure of staggered stator-hoop and surface-mounted rotor-disk. A generator prototype is manufactured and experiments are conducted to validate the effectiveness of the 3D-FEA studies. The experimental results are in good agreement with the analysis preview.