Device for controlling motor rotation speed

Details Device for controlling motor rotation speed Device for controlling motor rotation speed

1986-02-05

1986-11-18

Dobeck, B.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318609, 318610, 318599, H02P 516

Patent

active

046238271

ABSTRACT:
A motor speed control device for variably controlling the rotation speed of a motor over a wide range. The control device performs proportional integration (PI) using an actual motor speed and a set motor speed and applies the resulting amount of operation to a pulse wave modulator, thereby feedback controlling the motor rotation. A constant assigned to a speed compute section is variable to finely adjust the motor speed. A plurality of proporational gains K.sub.p and a plurality of integral gains are selected one at a time each according to the set motor speed. The PI operation, selection of a constant and speed computation are performed inside of a single CPU.

REFERENCES:
patent: 4408148 (1983-10-01), Herzog
patent: 4422025 (1983-12-01), Steller
patent: 4500830 (1985-02-01), Gotou et al.
patent: 4520301 (1985-05-01), Suzuki

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