Stator of D.C. rotary machine

Details Stator of D.C. rotary machine Stator of D.C. rotary machine

1982-06-10

1984-05-29

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310180, 310183, H02K 2322

Patent

active

044517521

ABSTRACT:
In a stator provided with interpoles, a magnetic flux adjusting winding is provided adjacent to the radially inner end of each interpole core for adjusting the magnetic flux passing through the half of the circumferential width of the interpole core, so that the intensity of the magnetic flux passing through the radially inner end of the interpole core becomes substantially uniform along the end face of the interpole core, whereby the waveform of the commutating emf is simulated to that of the reactance voltage to widen the width of the no-spark zone during commutation thereby improving the commutation performance without appreciably modifying the original shape or structure of the stator.

REFERENCES:
patent: 2385199 (1945-09-01), Fisher
patent: 3201626 (1965-08-01), Calabrese et al.
patent: 3263147 (1966-07-01), Robinett

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