Speed measurement system for speed control of high-speed motors

Details Speed measurement system for speed control of high-speed motors Speed measurement system for speed control of high-speed motors

2007-07-24

2007-07-24

Nghiem, Michael (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

C702S145000

Reexamination Certificate

active

11207173

ABSTRACT:
A system for measuring speed of a high-speed motor using a moving average filter. A position sensor generates a rotor position signal. A signal processing module determines a rotor angle from the rotor position signal. A speed observer module calculates a raw speed of the motor from the rotor angle. A filter module selectively generates a filtered speed of the motor from the raw speed of the motor. A frequency-to-period converter module calculates a rotor period from one of the raw speed of the motor and the filtered speed of the motor. A divider module calculates number of points in a moving average from the rotor period. A moving average filter module adjusts a window size of the moving average to the rotor period. A moving average filter removes ripple and harmonics of the ripple from the raw speed of the motor.

REFERENCES:
patent: 5377295 (1994-12-01), Ueda et al.
patent: 5886491 (1999-03-01), Yoshida et al.
patent: 5962999 (1999-10-01), Nakamura et al.
patent: 6653964 (2003-11-01), Mizuno et al.

Affiliated with

Also associated with

Rating

Speed measurement system for speed control of high-speed motors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speed measurement system for speed control of high-speed motors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speed measurement system for speed control of high-speed motors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3737545