Motor speed control apparatus for motors

Details Motor speed control apparatus for motors Motor speed control apparatus for motors

1995-10-25

1998-04-07

Masih, Karen

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Field control, or field and armature control, by analog...

318632, 318609, 388902, 3889075, 388906, H02P 506

Patent

active

057374830

ABSTRACT:
A motor speed control apparatus is provided in which the controllable frequency band of the control system can be sufficiently enhanced with a comparatively simple structure even if the frequency generator equipped into the motor is low in output frequency and the rotational accuracy can be highly improved even if the disturbance of high frequency components of load torque is applied to the motor. The frequency band of the control system can be improved by using the estimated speed signal as the speed feedback signal. A motor speed control apparatus superior in disturbance control characteristic can be realized through the feed forward compensation of an estimated load torque.

REFERENCES:
patent: 4745563 (1988-05-01), Kaku et al.
patent: 5392378 (1995-02-01), Tohyama
patent: 5471880 (1995-12-01), Lang et al.

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