Synchronous motor control device

Details Synchronous motor control device Synchronous motor control device

1980-09-04

1983-06-21

Smith, Jr., David

Electricity: motive power systems

Synchronous motor systems

Field winding circuits

318729, H02P 540

Patent

active

043896073

ABSTRACT:
A voltage V.sub.ac of a synchronous motor is converted into positive and negative voltages of a predetermined magnitude relative to the ground during the positive and negative half-wave periods, respectively. The voltage is delivered during the positive and negative periods of a current I.sub.b and is used as a signal representing a power factor. The difference between a target value of the power factor and the signal representing the power factor thus delivered is used for compensating for the difference between a target current of a field system and a feed-back signal thereby to control a field current.

REFERENCES:
patent: 3145332 (1964-08-01), MacGregor
patent: 3383575 (1968-05-01), Bobo
patent: 3686551 (1972-08-01), Peterson
patent: 3686552 (1972-08-01), Peterson
Nola, F. J., "Circuit Waves Power in AC Induction Motors", EDN, Sep. 5, 1979, pp. 185-189.
Pascente, J., "Energy-Saving Motor Control", New Electronics, vol. 12, No. 7, Apr. 3, 1979.
Smith, I. R., "Motor Performance Improved by Excitation Control", Control & Instrumentaion, Feb. 1973, pp. 38-40.

Affiliated with

Also associated with

Rating

Synchronous motor control device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synchronous motor control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronous motor control device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2112288