Control method of induction motor and device therefor

Details Control method of induction motor and device therefor Control method of induction motor and device therefor

1990-03-22

1991-11-19

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318800, H02P 540

Patent

active

050668994

ABSTRACT:
An induction motor is controlled using a control device having a current control loop by detecting a current of the induction motor, and by detecting a current error corresponding to a difference between the detected current of the motor and a current command signal of the control device. The current error is processed to obtain a slip frequency. A field speed control command is generated based on the slip frequency and a motor speed of the induction motor.

REFERENCES:
patent: 4330741 (1982-05-01), Nagase et al.
patent: 4503375 (1985-03-01), Okuyama
patent: 4671389 (1987-06-01), Tanahashi
patent: 4677361 (1987-06-01), Yonemoto
patent: 4680526 (1987-07-01), Okuyama et al.
patent: 4780658 (1988-10-01), Koyama

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