Synchronous reluctance machine with integer-slot double-layer concentrated winding for wind energy applications

Abstract

The following work considers an application of a synchronous reluctance machine with an integer-slot double-layer concentrated stator winding to the large-scale 2MW wind energy conversion system as an electrical generator. General advantages and drawbacks of the abovementioned machine type and possible optimization methods are mentioned. Proposed winding topology is characterized by a low winding factor of the fundamental wave in the magnetomotive force which made it to an unconventional and not often used arrangement. Despite having this issue, there are also certain benefits which are shown by opposing with another concentrated winding design that has a higher fundamental winding factor. Performance analysis in terms of produced torque, efficiency, power factor, field weakening performance and active weight is made.