Electricity: motive power systems – Generator-fed motor systems having generator control – Automatic generator control and/or with time-delay means
Reexamination Certificate
2011-08-02
2011-08-02
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Generator-fed motor systems having generator control
Automatic generator control and/or with time-delay means
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
Furukawa Kimihisa
Kaneko Satoru
Katsuhama Kenta
Ohno Satoru
Suwa Tokihito
Crowell & Moring LLP
Donovan Lincoln
Glass Erick
Hitachi , Ltd.
LandOfFree
Generator control unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Generator control unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generator control unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2638906