Electricity: single generator systems – Automatic control of generator or driving means – Voltage of generator or circuit supplied
Reexamination Certificate
2009-08-06
2010-11-30
Ponopmarenko, Nicholas (Department: 2839)
Electricity: single generator systems
Automatic control of generator or driving means
Voltage of generator or circuit supplied
C322S037000, C310S179000
Reexamination Certificate
active
07843175
ABSTRACT:
Excitation control circuitry for a synchronous generator is disclosed. The synchronous generator is of a type comprising a main machine (2) and an exciter (6) for exciting the main machine. The excitation control circuitry comprises an automatic voltage regulator (10) for controlling power flow from the main machine to the exciter, and an excitation boost system (14) for selectively supplying power from a second source of electrical power (12) to the exciter (6). This can allow additional excitation to be provided, for example, when the generator is in overload. This arrangement can allow a synchronous generator to be upgraded by adding the excitation boost system to provide enhanced overload performance.
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Brown Neil
Dalby Denis Hadley
Jakeman Nigel
Wright Michael John
Cummins Generator Technologies Limited
Hamre Schumann Mueller & Larson P.C.
Ponopmarenko Nicholas
Schelkopf J. Bruce
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