Control systems for AC induction motors

Details Control systems for AC induction motors Control systems for AC induction motors

1981-08-31

1985-12-17

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318811, H02P 534

Patent

active

045594856

ABSTRACT:
An AC induction motor control system wherein two pulse trains are generated, one pulse train including a pulse for each increment of rotor movement, and the other pulse train having pulses occurring at a rate proportional to slip. The pulse trains are combined in a counter which controls formation of synthesized winding excitations developed from pre-recorded sine values. The slip pulse train is developed according to pre-recorded slip factors selected as a function of rotor speed and modified in accordance with desired torque.

REFERENCES:
patent: 3644721 (1972-02-01), Preiser
patent: 3899725 (1975-08-01), Plunkett
patent: 3962614 (1976-06-01), Rettig
patent: 4099107 (1978-07-01), Eder
patent: 4099109 (1978-07-01), Abbondanti
patent: 4227137 (1980-10-01), Hartman
patent: 4267499 (1981-05-01), Kurosawa
patent: 4322671 (1982-03-01), Kawada
patent: 4356544 (1982-10-01), Ono
patent: 4392100 (1983-07-01), Stanton
Standard Transistorized Inverter--Tosvert-100 Series, Toshiba.

Affiliated with

Also associated with

Rating

Control systems for AC induction 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 Control systems for AC induction motors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control systems for AC induction motors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2176661