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An electric machine, such as a motor or a generator, comprises a stator having a plurality of stator poles defining a plurality of slots, a rotor positioned within the stator, and at least a two sets of stator windings wound on the stator poles and occupying said stator slots such that the boundary

An electric machine, such as a motor or a generator, comprises a stator having a plurality of stator poles defining a plurality of slots, a rotor positioned within the stator, and at least a two sets of stator windings wound on the stator poles and occupying said stator slots such that the boundary windings of each set of stator windings occupies a common slot. These boundary windings of each set of stator windings are non-overlapping and include insulation positioned between them. The sets of stator windings are wound on the stator poles in a single pitch winding configuration significantly reducing the number of wire crossings resulting. In particular, the endturns defined by the individual phase coils are non-intersecting. Such a machine provides continued operation under various fault conditions.

대표청구항 ▼

[ What is claimed is:] [1.] An electric machine, comprising:a stator having a plurality of stator poles disposed around an inner periphery thereof, aid stator poles defining a plurality of slots therebetween;a rotor rotatably disposed within said stator; andat least a first and a second set of stato

[ What is claimed is:] [1.] An electric machine, comprising:a stator having a plurality of stator poles disposed around an inner periphery thereof, aid stator poles defining a plurality of slots therebetween;a rotor rotatably disposed within said stator; andat least a first and a second set of stator windings wound on said stator poles and occupying said stator slots, said at least first and second sets of stator windings occupying separate regions of said stator; andwherein a boundary winding of said at least first and second set of stator windings occupies a common slot.