Control circuit for electrical generator

Details Control circuit for electrical generator Control circuit for electrical generator

1997-06-26

1998-12-15

Laballe, Clayton E.

Electricity: single generator systems

Generator control

With excitation winding and/or circuit control

322 69, H02P 914

Patent

active

058501380

ABSTRACT:
An electrical generator provides an output at a main stator winding which is excited by a main rotor winding. The main rotor winding is connected via a rectifier to a main exciter rotor winding which is excited by a main exciter field winding. A control circuit controls excitation of the main exciter field winding so as to stabilise the generator output voltage. The control circuit includes a detector for detecting excessive generator output voltage and a transistor switch for connecting a resistor in the current recirculation path of the main exciter field winding so as to prevent transient over-voltages caused by sudden load reductions.

REFERENCES:
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patent: 4639657 (1987-01-01), Frierdich
patent: 4706179 (1987-11-01), Smith
patent: 4764838 (1988-08-01), MacFarlane
patent: 5023539 (1991-06-01), Miller et al.
patent: 5194801 (1993-03-01), Rozman
patent: 5508601 (1996-04-01), Good et al.

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