公开(公告)号：US20150152846A1

公开(公告)日：2015-06-04

申请号：US14553931

申请日：2014-11-25

Applicant: ALSTOM RENEWABLE TECHNOLOGIES

Inventor： Josep PRATS MUSTARÓS ,  Marc GUADAYOL ROIG

IPC: F03D7/04 ,  F03D9/00 ,  F03D7/02

CPC classification number: F03D7/048 ,  F03D7/0276 ,  F03D7/028 ,  F03D9/257 ,  F03D15/20 ,  F05B2270/1012 ,  F05B2270/1075 ,  F05B2270/32 ,  F05B2270/404 ,  Y02E10/723

Abstract: Methods of operating a variable speed wind turbine as a function of a wind speed, the wind turbine having a rotor with a plurality of blades, a generator having a rated output power, and one or more pitch mechanisms for rotating the blades around their longitudinal axis, and a system for varying a torque of the generator. The methods comprise a sub-nominal zone of operation for wind speeds below a nominal wind speed and a supra-nominal zone of operation for wind speeds at or above the nominal wind speed, wherein at wind speeds at or near the nominal wind speed, the generator is allowed to generate more than its rated output power for a limited period of time. Also disclosed are wind turbines and wind farms adapted to perform these methods.

Abstract translation: 作为风速的函数操作变速风力涡轮机的方法，所述风力涡轮机具有带有多个叶片的转子，具有额定输出功率的发电机以及用于使叶片围绕其纵向轴线旋转的一个或多个俯仰机构 以及用于改变发电机的扭矩的系统。 这些方法包括用于低于标称风速的风速的低标称操作区域和等于或高于标称风速的风速的超标称操作区域，其中在等于或接近标称风速的风速下， 发电机允许在有限的时间内产生超过其额定输出功率。 还公开了适于执行这些方法的风力涡轮机和风力发电场。

公开(公告)号：US20150152847A1

公开(公告)日：2015-06-04

申请号：US14553940

申请日：2014-11-25

Applicant: ALSTOM RENEWABLE TECHNOLOGIES

Inventor： Marc GUADAYOL ROIG

IPC: F03D7/04 ,  F03D9/00 ,  F03D7/02

CPC classification number: F03D7/048 ,  F03D7/022 ,  F03D7/028 ,  F03D7/045 ,  F03D7/046 ,  F03D9/25 ,  F03D9/257 ,  F05B2260/821 ,  F05B2270/32 ,  F05B2270/404 ,  F05B2270/8042 ,  Y02E10/723

Abstract: Method of operating a variable speed wind turbine as a function of wind speed are disclosed, the wind turbine having a rotor with a plurality of blades, a generator, pitch mechanisms for rotating the blades around their longitudinal axes, and a system for varying a torque of the generator. The method comprises at a first moment in time estimating representative future wind speed values from the first moment in time up to a second moment in time, the second moment in time being equal to the first moment in time plus a predetermined finite period of time, and using a control strategy to optimize a cost function indicative of an energy output of the wind turbine based on the estimated representative future wind speed values by controlling the torque of the generator and the pitch angles of the blades. Wind turbines suitable for such methods are also disclosed.

Abstract translation: 公开了将变速风力涡轮机作为风速的函数进行操作的方法，所述风力涡轮机具有带有多个叶片的转子，发电机，用于使叶片围绕其纵向轴线旋转的俯仰机构，以及用于改变扭矩的系统 的发电机。 该方法包括在第一时刻估计从第一时刻到第二时刻的代表性未来风速值，第二时刻等于第一时刻加上预定的有限时间段， 以及通过控制所述发电机的扭矩和所述叶片的俯仰角，使用控制策略来基于所估计的代表性未来风速值来优化指示所述风力涡轮机的能量输出的成本函数。 也公开了适用于这种方法的风力涡轮机。