Design Evaluation of Conventional and Toothless Stator Wind Power Axial-Flux PM Generator

This work evaluates the effects of stator design on armature copper conductors eddy current loss and stator core losses of axial-flux permanent magnet (AFPM) generators for use in wind power generation. The approach used to predict the performance characteristics of AFPM generators employs a quasi-3-D finite element analysis (FEA) technique, where computations are done using 2-D FEA. Two generator design configurations are considered. The first has a conventional type stator design and the second has a toothless stator design. The losses are estimated and compared for both designs. In addition, an assessment of stator conductors design options, for both stator design configurations, is conducted with the aim of minimizing armature conductor eddy current loss.