Six-phase Axial Flux Permanent Magnet generator model: Simulation and experimental validation

This paper presents a Finite Element Analysis (FEA) of a 24kW six-phase Axial Flux Permanent Magnet Synchronous Machine (6AFPMSM) and its validation through experimental tests for fault tolerant generation purposes. The presented topology contains a high pole number and is suited for wind turbines applications in direct-drive or hybrid one-step geared systems. Simulations with Finite Element Method (FEM) are performed in order to validate the performances of the proposed model. The 24kW prototype of the generator has been built and experimental data are compared with simulations ones in healthy and stator faulted conditions. In order to compare the behavior of the machine in faulty mode, two configurations of the stator are analyzed: double star and single star connections.