METHOD FOR GENERATING COMMUTATING FIELD IN SINGLE-PHASE COMMUTATOR MOTOR Russian patent published in 2005 - IPC

Abstract RU 2251205 C2

FIELD: electrical engineering; commutator-pole motors.

SUBSTANCE: proposed method intended to compensate for transformer emf in commutated coils of armature winding under any operating conditions including starting period, when armature is motionless or rotates at slow speed, includes generation of magnetic-field traveling wave in commutation region that induces rotational emf in commutated coils to compensate for transformer emf even when armature is motionless. Novelty is that magnetic field traveling wave is produced in commutated region by combination of asymmetry of unlike-polarity commutating pole shoes relative to geometric neutral and phase shift between currents feeding their windings from independent controlled ac converters. In the process function of fixed magnetic field on geometric neutral is maintained.

EFFECT: improved commutation of single-phase commutator machines.

1 cl, 3 dwg

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RU 2 251 205 C2

Authors

Bitjutskij I.B.

Dates

2005-04-27Published

2003-03-28Filed