Axial Flux Switching Generator “A Comparative Study”
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Abstract
Axial Flux switching machine (AFSM) is a doubly salient, brushless, high frequency machine. Due to its unique brushless construction, it is considered the outstanding candidate to be used as an alternator in wind energy systems as well as traction systems. It is constructed as a salient structure machine with three phase windings wound on the stator poles along with the field windings. The rotor has salient pole structure without windings or permanent magnets. Such construction can be arranged in two configurations. First, the double-sided stator included between two single sided rotors. The latter, a double-sided rotor included between two single sided stators. The paper presents a complete comparison between the performance of the two arrangements that have been studied theoretically using Ansys Maxwell software program. Two single-sided stators including double sided rotor have been built and examined to verify the theoretical results. The results reveal that there are no significant differences between the performance of the two configurations. So, preferring one of the two structures depends mainly on the application requirements.
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