Architecture for electric machine
AssigneePratt & Whitney Canada Corp.
InventorKevin Allan DOOLEY
Life of this patent
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Abstract
The invention includes an electric machine having a rotor, stator and at least one winding in the stator adapted to conduct a current, and a secondary winding, electrically isolated from the first winding and inductively coupled to the first winding, which may be used to control at least one of the output voltage and current of the first winding.
Claims2
A stator assembly for a multi-phase electric machine, the assembly comprising a stator having a plurality of radially-extending slots around a periphery of the stator, and a multi-phase winding set comprising at least three phase windings each configured for carrying an alternating current signal of a distinct phase relative to the other phase windings, the at least three phase windings disposed regularly around the stator in selected stator slots, each stator slot carrying only one of said at least three phase windings, the at least three windings extending circumferentially from respective slot to respective slot adjacently to one another along a common end of the stator, the at least three windings extending adjacently to one another along the common end at different radii relative to one another, the radii selected to provide a radial air-gap separation between adjacent phase windings.
Dependencies are inferred from the claim text.