Tacho-less vector control adaptive system for motor drive

Details Tacho-less vector control adaptive system for motor drive Tacho-less vector control adaptive system for motor drive

1988-10-31

1989-08-29

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318805, H02P 540

Patent

active

048620548

ABSTRACT:
Adaptive control is used in an asynchronous motor drive. A reference model based on the model equation of the motor is combined with an adjustable model responsive to the direct and quadrature components of the current and to an estimated speed. An adaptive mechanism counting in a P-I amplifier expands to the direct deviation between the direct and quadrature components of the flux outputed by the two models and generates a feedback signal representing the estimated speed. The adjustable model reacts to such feedback signal so that the estimated speed readily becomes the actual speed of the motor. As a result, a tacho-less AC motor drive is obtained in which under any running conditions the motor immediately takes the required speed.

REFERENCES:
patent: 3909687 (1975-09-01), Abbondanti
patent: 4009427 (1977-02-01), Takahashi
patent: 4481457 (1984-11-01), Zach
patent: 4503376 (1985-03-01), Okuyama
patent: 4680526 (1987-07-01), Okuyama et al.
patent: 4733149 (1988-03-01), Culberson

Affiliated with

Also associated with

Rating

Tacho-less vector control adaptive system for motor drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tacho-less vector control adaptive system for motor drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tacho-less vector control adaptive system for motor drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2240701