Energization controller for a phase coil of an electric motor

Details Energization controller for a phase coil of an electric motor Energization controller for a phase coil of an electric motor

1999-06-24

2000-10-31

Martin, David

Electricity: motive power systems

Synchronous motor systems

Hysteresis or reluctance motor systems

318439, 318254, H02P 528

Patent

active

061407941

ABSTRACT:
Angle bounds of a normal energization of the coil of an electric motor are generated in accordance with a combination of a rotation direction and a torque direction of the electric motor. Angle bounds of the decided energization are determined based on a decision of either energization or deenergization of the coil and the detected rotation angle of the rotor. An abnormal condition is determined to exist when the angle bounds of the decided energization are not within the angle bounds of the normal energization.

REFERENCES:
patent: 4959596 (1990-09-01), MadMinn et al.
patent: 5142244 (1992-08-01), Lyons et al.
patent: 5637974 (1997-06-01), McCann
patent: 5652494 (1997-07-01), Sugden
patent: 5739663 (1998-04-01), Brown
patent: 5894210 (1999-04-01), Brown et al.

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