Torque detecting apparatus for reducing torque ripple in an AC m

Details Torque detecting apparatus for reducing torque ripple in an AC m Torque detecting apparatus for reducing torque ripple in an AC m

1995-02-10

1997-04-01

Wysocki, Jonathan

Electricity: motive power systems

Positional servo systems

With compensating features

318432, H02P 700

Patent

active

056169990

ABSTRACT:
A torque detecting apparatus for an AC motor is provided which includes a current detecting circuit, an angular position detecting circuit, a torque detecting circuit, and a ripple reducing circuit. The current detecting circuit detects a phase current flowing through each winding of the motor. The torque detecting means determines a torque value indicative of the amount of torque of the AC motor based on the phase currents detected by the current detecting circuit according to an angular position detected by the angular position detecting circuit. The ripple reducing circuit reduces ripple contained in the torque value according to the angular position of the motor for determining an accurate amount of torque of the motor.

REFERENCES:
patent: 4528486 (1985-07-01), Flaig et al.
patent: 4544868 (1985-10-01), Murty
patent: 4633423 (1986-12-01), Bailey
patent: 4814683 (1989-03-01), Okamoto et al.
patent: 4876491 (1989-10-01), Squires et al.
patent: 5023924 (1991-06-01), Tajima et al.

Affiliated with

Also associated with

Rating

Torque detecting apparatus for reducing torque ripple in an AC m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Torque detecting apparatus for reducing torque ripple in an AC m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torque detecting apparatus for reducing torque ripple in an AC m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-542038