Modeling and Analysis of a Permanent Magnet Synchronous Generator Dedicated to Wind Energy Conversion

Abstract

In this paper, the modeling and finite element analysis of a three-phase radial flux permanent magnet synchronous generator (PMSG) for dedicated wind energy conversion is presented. The generator is for use with direct drive wind turbine. A mathematical model in the rotor reference frame of the machine is formulated and a 2D model of PMSG is designed using ANSYS Maxwell software. Two PM materials - Neodymium-Iron-Boron (Nd-Fe-B) and Alnico (Al, Ni, Co, Fe) were considered in the analysis of the PMSG for wind turbine, and a comparative analysis was carried out using the method of finite element field analysis. The numerical results obtained shows that Alnico material has a better torque performance. The accuracy of the model was validated by the formation of the magnetic field lines and flux density distribution of PMSG.