Energization control system for switched reluctance motor

Details Energization control system for switched reluctance motor Energization control system for switched reluctance motor

1996-09-17

1998-08-18

Wysocki, Jonathan

Electricity: motive power systems

Switched reluctance motor commutation control

318439, H02P 700

Patent

active

057962260

ABSTRACT:
A system which energizes an SR motor with a three phase sequential and time sharing energization. Coil of respective phase is energized in an interval from an energization ON angle to an energization OFF angle. The OFF angle is advanced in reverse proportion to a speed and a target torque of a rotor of the motor in a high speed range exceeding a threshold Rbase which is an upper limit of a speed range in which a high noises is generated by a tangential oscillation of the rotor. The OFF angle is advanced in proportion to the speed of the rotor and in reverse proportion to the target torque in a low speed range under the threshold Rbase. The advance prevents the generation of noises. The system includes a compensator which corrects an energization level for accommodating an actual acceleration to a target acceleration of the rotor.

REFERENCES:
patent: 4987546 (1991-01-01), Blohm et al.
patent: 5023527 (1991-06-01), Erdman et al.
patent: 5023528 (1991-06-01), Saidin et al.
patent: 5113125 (1992-05-01), Stacey
patent: 5124625 (1992-06-01), Wakabayashi

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