Electricity: single generator systems – Generator control – With excitation winding and/or circuit control
Reexamination Certificate
2011-08-30
2011-08-30
Ponomarenko, Nicholas (Department: 2839)
Electricity: single generator systems
Generator control
With excitation winding and/or circuit control
C322S028000, C363S034000
Reexamination Certificate
active
08008895
ABSTRACT:
A static exciter system (20) for the field winding (17) of a generator (16) which is connected to a grid system via a busbar (19) includes a first device (12, 18, 21) for production of a DC voltage, which is connected to the field winding (17) and together with the field winding (17) form an exciter circuit, as well as a second device (23; 29, C1, . . . , C3) for emission of electrical energy, which second device (23; 29, C1, . . . , C3) briefly feeds additional energy into the exciter circuit when required. An exciter system such as this results in the capability to briefly increase the excitation in a simple, functionally reliable and space-saving manner, by inserting a forward-biased diode (22) into the exciter circuit, and by the capability to connect the second device (23) to the diode (22), in the reverse-bias direction, in order to feed the energy into the exciter circuit.
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ALSTOM Technology Ltd.
Cermak Adam J.
Cermak Nakajima LLP
Ponomarenko Nicholas
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