Generator control unit

Electricity: motive power systems – Generator-fed motor systems having generator control – Automatic generator control and/or with time-delay means

Reexamination Certificate

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Details

C318S151000, C318S153000, C318S811000, C318S079000, C318S084000, C180S065100, C180S065210, C180S065285

Reexamination Certificate

active

07990085

ABSTRACT:
An object of the present invention is to provide a generator control unit having improved voltage response in a system which is not provided with a battery in a DC output unit.In order to control the DC voltage of the DC voltage output terminal in a state where an electric load is connected to the DC voltage output terminal of a power generation unit, a PWM signal generation unit429generates a field voltage to be applied to a field winding terminal of the power generation unit. A feedback control unit422calculates a field voltage command value to be given to the PWM signal generation unit429. Further, the feedback control unit422includes a PT control unit423which calculates a voltage deviation between a DC voltage detection value and a DC voltage command value to generate the field voltage command value through a PI operation based on the voltage deviation. The feedback control unit422includes compensation units424and425which generate a field voltage command value after compensating the output of the PT control unit423for the voltage deviation based on input/output transfer characteristics of the generator from the field voltage to the DC voltage.

REFERENCES:
patent: 5113125 (1992-05-01), Stacey
patent: 5992950 (1999-11-01), Kumar et al.
patent: 7193395 (2007-03-01), O'Gorman et al.
patent: 60-106338 (1985-06-01), None
patent: 05-176476 (1993-07-01), None
patent: 2006-248469 (2006-09-01), None
patent: 2006-288006 (2006-10-01), None
patent: 2007-230298 (2007-09-01), None
patent: 2007-237782 (2007-09-01), None
patent: 2007-325388 (2007-12-01), None

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