Method and apparatus for harmonics suppression in motor systems

Details Method and apparatus for harmonics suppression in motor systems Method and apparatus for harmonics suppression in motor systems

1985-03-20

1986-12-16

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310156, 310162, H02K 2112, H02K 3700

Patent

active

046299165

ABSTRACT:
A polyphase synchronous motor having a relatively large number of poles, constructed for substantial elimination of all significant harmonics. Harmonics are eliminated by dividing the motor into two symmetrical groupings, each a complete motor, then rotating one grouping relative to the other by an angle .pi./h electrical degrees, where h is the order of the harmonic being suppressed. Also, with a permanent magnet disc rotor, the magnet poles on one face of the disc can be rotated relative to those of the other face in the same manner, to suppress a harmonic.

REFERENCES:
patent: 4155018 (1979-05-01), Oudet
patent: 4297625 (1981-10-01), Newell
patent: 4302712 (1981-11-01), Pritchard
patent: 4330727 (1982-05-01), Oudet
patent: 4424463 (1984-01-01), Musil
patent: 4496887 (1985-01-01), Ichihara et al.
patent: 4517478 (1985-05-01), Oudet
patent: 4518883 (1985-05-01), Oudet

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