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    • 3. 发明授权
    • Wind turbine and method for operating same
    • 风力发电机及其运行方法
    • US07586206B2
    • 2009-09-08
    • US12346248
    • 2008-12-30
    • Werner BartonWilhelm JanssenRobert DelmericoNicholas W. Miller
    • Werner BartonWilhelm JanssenRobert DelmericoNicholas W. Miller
    • F03B13/10
    • F03D7/0284F03D9/255F05B2220/70644F05B2240/96F05B2270/1041F05B2270/337H02J3/38Y02E10/723Y02E10/725Y02E10/763
    • A wind turbine includes an asynchronous generator having a rotor and a stator, means for determining an actual torque-speed curve of the generator, means for determining an actual grid frequency, and means for determining a shifted torque-speed curve in response to the determined actual grid frequency if the determined actual grid frequency is higher than a predetermined upper frequency limit or lower than a predetermined lower frequency limit. The means for determining a shifted torque-speed curve is further adapted to determine the shifted torque-speed curve such that an increase in the rotor voltage of said generator rotor is counteracted when shifting the actual torque-speed curve to the shifted torque-speed curve. The wind turbine further includes means for shifting the actual torque-speed curve of the generator to the shifted torque-speed curve.
    • 风力涡轮机包括具有转子和定子的异步发电机,用于确定发电机的实际扭矩 - 速度曲线的装置,用于确定实际电网频率的装置,以及用于根据所确定的确定实际电网频率来确定移动的转矩 - 速度曲线的装置 如果所确定的实际电网频率高于预定的上限频率或低于预定的下限频率,则实际电网频率。 用于确定移动的转矩 - 速度曲线的装置还适于确定移动的转矩 - 速度曲线,使得当将实际转矩 - 速度曲线移动到移动的转矩 - 速度曲线时,所述发电机转子的转子电压的增加被抵消 。 风力涡轮机还包括用于将发电机的实际扭矩 - 速度曲线转换到移动的扭矩 - 速度曲线的装置。