Apparatus and related method to compensate for torque ripple in

Details Apparatus and related method to compensate for torque ripple in Apparatus and related method to compensate for torque ripple in

1991-10-28

1993-06-29

Wysocki, Jonathan

Electricity: motive power systems

Constant motor current, load and/or torque control

318254, 388902, H02P 700

Patent

active

052237753

ABSTRACT:
An input control current command signal is modified in accordance with a number of compensation factors stored in a memory and corresponding to each of a number of angular shaft positions to provide a control signal to cause an inverter to drive each of the number of phases of a permanent magnet axial-field motor to cause the motor to produce a ripple-free torque output. The compensation values stored in the memory are identified and determined in accordance with the source of the torque ripple such as vibration, load operation, noise and variations within the motor construction.

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