Dynamo electric machine with upwardly shifted ripple frequency

Details Dynamo electric machine with upwardly shifted ripple frequency Dynamo electric machine with upwardly shifted ripple frequency

H - Electricity

02

K

310/70

H02K 1/06 (2006.01) G01P 3/46 (2006.01) H02K 23/02 (2006.01) H02K 23/40 (2006.01) H02K 23/42 (2006.01)

Patent

CA 1204140

Abstract A rotary electric dynamo machine in which the ripple component in the output occurs at a higher frequency. One half of the pole faces have a nonuniform airgap while the other half have a uniform air gap and cover a noninteger slot distance. The armature has an odd number of slots. Instead of the usual ripple component at the slot frequency, a dynamo constructed as described above, surprisingly, has a predominant ripple component at twice the slot frequency.

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