Method for operating wind farm and wind farm

A method for operating a wind farm having strings of wind turbines electrically connectable to each other and to an electrical grid is disclosed. Each wind turbine includes a rotor with rotor blades, a power conversion system mechanically connected to the rotor, and at least one auxiliary subsystem....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SUBRAMANIAN SURESH-PRASAD, PALESOPP BERND, MOHAN SIDDHARTH, GADILLARU KARTHIK VENKATA RAMANA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	A method for operating a wind farm having strings of wind turbines electrically connectable to each other and to an electrical grid is disclosed. Each wind turbine includes a rotor with rotor blades, a power conversion system mechanically connected to the rotor, and at least one auxiliary subsystem. The method comprises: operating the string of wind turbines in an islanding mode of operation in which the wind turbines are not connected to the grid and the respective at least one auxiliary subsystem is supplied with electrical power generated by the power conversion system of the respective wind turbine; detecting that a rotor of one of the wind turbines is exposed to a wind condition under which at least one of the rotor blades is at risk of stall at the currently generated electrical output power; and increasing the electrical power generated by the power conversion system of one of the wind turbines by an amount of electrical power sufficient to supply at least one auxiliary subsystem of at least one of the