公开(公告)号：US20170009739A1

公开(公告)日：2017-01-12

申请号：US15269839

申请日：2016-09-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Fabio CAPONETTI ,  Per BRATH ,  Keld HAMMERUM ,  Johnny NIELSEN

IPC: F03D7/04 ,  F03D17/00 ,  F03D7/02 ,  G05B15/02

CPC classification number: F03D7/042 ,  F03D7/0224 ,  F03D17/00 ,  F03G7/00 ,  G05B15/02

Abstract: A method of detecting a fault mode of a sensor is provided. The sensor may be, for example, a bending moment sensor and may sense a bending moment of a blade on a wind turbine generator (WTG). The method includes comparing data output by a first sensor with reference data indicating what is expected to be output by the first sensor to produce a first comparison result and comparing data output by the first sensor with data output by a second sensor to produce a second comparison result. A determination of whether the first sensor has entered a fault mode is made based at least in part on the first and second comparison results.

Abstract translation: 提供一种检测传感器故障模式的方法。 传感器可以是例如弯矩传感器并且可以感测风力涡轮发电机（WTG）上的叶片的弯矩。 该方法包括将由第一传感器输出的数据与由第一传感器预期输出的参考数据进行比较以产生第一比较结果，并将由第一传感器输出的数据与由第二传感器输出的数据进行比较以产生第二比较 结果。 至少部分地基于第一和第二比较结果确定第一传感器是否已经进入故障模式。

公开(公告)号：US20160230741A1

公开(公告)日：2016-08-11

申请号：US15022876

申请日：2014-09-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Per BRATH ,  Martin Ansbjerg KJÆR ,  Jesper Sandberg THOMSEN

IPC: F03D7/02 ,  F03D7/04 ,  F03D17/00 ,  F03D1/06

CPC classification number: F03D7/0224 ,  F03D1/0666 ,  F03D7/043 ,  F03D7/048 ,  F03D17/00 ,  Y02E10/721 ,  Y02E10/723

Abstract: The invention relates to a method of controlling a wind turbine, the wind turbine comprising wind turbine blades attached to a rotor hub and a control system for pitching the blades relative to the hub. The method comprises providing wake sectors assigned to different wind directions and providing a normal pitch schedule to control an output parameter of the wind turbine (e.g. power, rotational speed), comprising pitch reference values as a function of the wind speed and at least one of the parameters of thrust coefficient C, and axial induction factor a. Further, is provided a modified pitch schedule to control a modified output parameter of the wind turbine, comprising pitch reference values in dependence of the wind speed and at least one modified parameter of the thrust coefficient and/or the axial induction factor. Upon receiving indications of a wind speed and a wind direction at the wind turbine is determined a pitch reference value for the wind turbine blades according to the normal pitch schedule if the wind direction falls outside the wake sector and otherwise according to the modified pitch schedule. The wind turbine is then controlled according to the pitch reference value. The invention further relates to a method of controlling the wind turbines in a wind park, wherein each wind turbine in the park is controlled locally according to the above mentioned control method.

Abstract translation: 本发明涉及一种控制风力涡轮机的方法，所述风力涡轮机包括附接到转子毂的风力涡轮机叶片和用于相对于所述毂倾斜叶片的控制系统。 该方法包括提供分配给不同风向的尾流扇区，并且提供正常俯仰调度以控制风力涡轮机的输出参数（例如功率，转速），包括作为风速的函数的俯仰参考值和至少一个 推力系数C的参数和轴向感应系数a。 此外，提供了一种修改的桨距计划，用于控制风力涡轮机的改进的输出参数，包括根据风速和推力系数和/或轴向感应系数的至少一个修改参数的俯仰参考值。 在风力涡轮机上接收到风速指示和风向的指示如果风向落在尾流扇区之外，则根据正常俯仰调度方式确定风力涡轮机叶片的俯仰参考值，或者根据修改的俯仰调度来确定。 然后根据俯仰基准值来控制风力涡轮机。 本发明还涉及一种控制风力发电场中的风力涡轮机的方法，其中根据上述控制方法对园区中的每个风力涡轮机进行局部控制。