Method and system for controlling rotating speed of wind turbine generator

The invention relates to a wind turbine generator rotating speed control method and system, and the method comprises the steps: obtaining the rotating speed of a generator after filtering at the current moment and the rotating speed of the generator after filtering at the previous moment when the ro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FANG QIBIN, CAI ANMIN, ZHANG LINWEI, YANG YUZHONG, YANG SHIHU, ZHENG RUXIN, JIN QIANG, LIU YU, XIE WEI
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:	The invention relates to a wind turbine generator rotating speed control method and system, and the method comprises the steps: obtaining the rotating speed of a generator after filtering at the current moment and the rotating speed of the generator after filtering at the previous moment when the rotating speed of the generator after filtering at the current moment is within a preset rotating speed range; determining the acceleration of the rotating speed difference of the generator between the current moment and the previous moment by using the obtained filtered rotating speed of the generator at the current moment and the filtered rotating speed at the previous moment of the current moment; and selecting a wind turbine generator rotation speed control scheme according to the acceleration of the generator rotation speed difference, and controlling the rotation speed of the wind turbine generator. According to the technical scheme, control over the rotating speed of the wind turbine generator is achieved, and