Method and apparatus for determining motor speed using zero cros

Details Method and apparatus for determining motor speed using zero cros Method and apparatus for determining motor speed using zero cros

1994-09-28

1996-08-20

Ip, Paul

Electricity: motive power systems

Induction motor systems

Braking

318729, 318772, 318759, H02P 318

Patent

active

055481973

ABSTRACT:
A method and apparatus to be used with a motor controller for determining the speed of the motor rotor using current zero crossing times of the stator winding currents. An error signal set, consisting of phase angle errors between consecutive zero crossings over a sampling period, is generated and analyzed in a region of interest in either the time or frequency domain, producing a signal frequency, the signal frequency being the frequency of the motor rotor.

REFERENCES:
patent: 4743815 (1988-05-01), Gee et al.
patent: 4862052 (1989-08-01), Unsworth et al.
patent: 4916370 (1990-04-01), Rowan et al.
patent: 4978897 (1990-12-01), Merrison et al.
patent: 4996469 (1991-02-01), DeLange et al.
patent: 4996470 (1991-02-01), Rowan et al.
patent: 5003241 (1991-03-01), Rowan et al.
patent: 5151642 (1992-09-01), Lombardi et al.
patent: 5187419 (1993-02-01), Delange
patent: 5397971 (1995-03-01), McAllister et al.
patent: 5397972 (1995-03-01), Maiocchi
patent: 5422570 (1995-06-01), Moreira

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