Data processing: generic control systems or specific application – Specific application – apparatus or process – Electrical power generation or distribution system
Reexamination Certificate
2009-04-02
2011-10-18
Decady, Albert (Department: 2121)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Electrical power generation or distribution system
C700S286000, C700S292000, C700S293000, C307S018000, C307S019000, C307S021000, C307S023000, C307S044000, C290S044000, C290S052000, C290S055000, C290S002000
Reexamination Certificate
active
08041466
ABSTRACT:
The invention relates to a method for operating a wind turbine connected to a utility grid during a utility grid disturbance. The method comprises the steps of controlling active current in dependency of the frequency deviation from a reference frequency, and controlling reactive current in dependency of the voltage deviation from a reference voltage. The invention also relates to a wind turbine and wind park.
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International Search Report, Apr. 25, 2008 (2 pages).
International Preliminary Report on Patentability, Jan. 1, 2009 (9 pages).
Helle Lars
Jensen Mark James
Nielsen John Godsk
Chang Sunray
De'cady Albert
Patterson & Sheridan LLP
Vestas Wind Systems A/S
LandOfFree
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