Flux-switching machine
The present invention relates to a flux-switching machine, including a stator having phase windings and field coils, wherein, in the machine, at least one field coil is arranged in a pair of notches separated by at least three teeth.
1. A flux-switching machine comprising a stator bearing phase windings and excitation windings, wherein:
each excitation winding comprises a first conductor and a second conductor,
the first conductor of at least one excitation winding is arranged in a first groove,
the second conductor of the at least one excitation winding is arranged in a second groove, and
the first groove and the second groove are separated by at least three teeth.
2. The machine as claimed in claim 1 , the grooves of the pair of grooves being separated by three teeth.
3. The machine as claimed in claim 1 , said machine being a single excitation machine.
4. The machine as claimed in claim 1 , comprising a single phase winding per groove.
5. The machine as claimed in claim 1 , the teeth on the rotor and/or on the stator not being skewed longitudinally.
6. The machine as claimed claim 1 , the number of teeth on the rotor n dr being equal to k×11 or k×13 and the number of teeth on the stator n ds being equal to k×18, where k is an integer, not equal to zero.
7. The machine as claimed in claim 6 , where k=1, 2 or 3.
8. The machine as claimed in claim 1 , the teeth being regularly spaced circumferentially on the stator.
9. The machine as claim 1 , said machine being three-phase.
10. The machine as claimed in claim 1 , each phase winding encompassing two consecutive teeth.
11. The machine as claimed in claim 1 , said machine constituting an alternator.
12. The machine as claimed in claim 1 , wherein:
the first conductor has a positive current, and
the second conductor has a negative current.