Electricity: single generator systems – Generator control
Reexamination Certificate
2008-01-22
2008-01-22
Schuberg, Darren (Department: 2834)
Electricity: single generator systems
Generator control
C322S055000, C322S043000, C322S054000, C322S025000
Reexamination Certificate
active
07321221
ABSTRACT:
A method of operating a wind turbine, wherein the wind turbine may include rotor windings of an induction generator, which includes stator coils coupled to a voltage grid, fed with rotor currents by a feed-in unit are driven by a rotor of the wind turbine; wherein the frequencies of the fed-in rotor currents are controlled depending on the rotor rotation frequency and the feed-in unit is electrically decoupled from the rotor windings in the case predetermined variations of the grid voltage amplitude and the rotor current feed-in is resumed after the decoupling caused by the variation of the grid voltage amplitude, when the currents generated in the motor windings by the variation have declined to a predetermined value.
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Bücker Andreas
Janssen Wilhelm
Lütze Henning
Blakely , Sokoloff, Taylor & Zafman LLP
General Electric Company
Mohandesi Iraj A.
Schuberg Darren
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