Electricity: single generator systems – Automatic control of generator or driving means – Electrical conditions in circuit other than that of...
Reexamination Certificate
2007-04-10
2007-04-10
Ponomarenko, Nicholas (Department: 2834)
Electricity: single generator systems
Automatic control of generator or driving means
Electrical conditions in circuit other than that of...
C322S036000, C307S032000
Reexamination Certificate
active
10966665
ABSTRACT:
A system for providing anti-islanding protection of a synchronous machine based distributed generator includes a frequency sensor configured to generate a generator frequency signal, a bandpass filter configured for filtering the generator frequency signal, a governor controller configured for using the filtered frequency signal to generate a power feedback signal, and a governor summation element configured for summing the filtered frequency signal, the power feedback signal, and a reference power to provide an electrical torque signal. Another system includes a voltage sensor configured to generate a generator terminal voltage signal, a feedback power calculator configured for generating a reactive feedback power signal, a bandpass filter configured for filtering the terminal voltage signal, and a PI controller summation element configured for summing the filtered terminal voltage signal, the reactive power feedback signal, and a reference reactive power to provide an error signal.
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Du Pengwei
Miller Nicholas Wright
Nelson John Keith
Walling Reigh Allen
Ye Zhihong
Agosti Ann M.
Patnode Patrick K.
Ponomarenko Nicholas
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