Analytical modeling of an axial flux permanent magnet synchronous generator for wind energy application

In this paper, an analytical modeling of an axial flux permanent magnet synchronous generator (AFPMSG) is investigated. The proposed model is based on an exact two dimensional (2D) solution of the magnetic field in the generator. Then, the generator´s quantities such as the phase electromotive force (EMF), the cogging torque and electromagnetic torque are written based on the developed exact 2D solution. To validate the proposed modeling, a 2D finite elements analysis (FEA) is performed, and results issued from the proposed model are compared with those stemming from a 2D FEA simulations. According to the simulation results, it is possible to evaluate the performance of the AFPMSG with reasonable accuracy via the developed analytical model