Patent ID: 6922036

Claim:
A method of reducing noise and vibration in a switched reluctance motor drive comprising: generating, by a computer, a phase current profile by: initializing a plurality of profile parameters defining at least a portion of the phase current profile, the profile parameters comprising a current turn-off instant and a current turn-off profile defining the portion of the phase current profile after the current turn-off instant; determining whether a desired torque is achieved based on operation of the switched reluctance motor drive using the plurality of profile parameters; updating at least one of the plurality of profile parameters if the desired torque is not achieved; initializing a radial force rate of change parameter mathematically related to the current turn-off profile; calculating the current turn-off profile based on the radial force rate of change parameter; determining whether the desired torque is achieved based on operation of the switched reluctance motor drive using the profile parameters, including the current turn-off profile calculated based on the radial force rate of change parameter; and updating the radial force rate of change parameter if the desired torque is not achieved; generating a phase current according to the phase current profile; and applying the phase current to the switched reluctance motor drive.