公开(公告)号：US20230086699A1

公开(公告)日：2023-03-23

申请号：US17787017

申请日：2020-12-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ewan MACHEFAUX ,  Juan Pablo MURCIA

IPC: G06F30/20 ,  F03D80/00

Abstract: Aspects of the present invention relate to a method for determining annual energy production of a wind farm. The method comprises: receiving a definition of the wind farm; modelling the wind field of the wind farm for a plurality of freestream wind speeds in a plurality of wind directions; defining locations for virtual measurement masts upstream of upstream turbines in each wind direction at a clearance from each upstream turbine for identifying wind farm blockage effects; determining a wind farm blockage factor for each freestream wind speed in each wind direction based on data from the virtual measurement masts; receiving measurements from a physical measurement mast located at the site of the wind farm; and determining an annual energy production for the wind farm based on adjusted wind speeds obtained by applying the blockage factors to measurements from the physical measurement mast.

公开(公告)号：US20210123416A1

公开(公告)日：2021-04-29

申请号：US17054152

申请日：2019-05-02

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Jakob VESTERGAARD ,  Anders Steen NIELSEN ,  Juan Pablo MURCIA

IPC: F03D7/04 ,  F03D7/02

Abstract: A method of operating a wind turbine. The wind turbine is operated over an operating period in accordance with a control strategy. A sensor signal is received over the operating period from a sensor measuring an operational parameter of the turbine. A model is used to obtain a modelled fatigue value based on the sensor signal. The modelled fatigue value provides an estimate of fatigue loading applied to a component of the turbine over the operating period. The control strategy is modified based on the modelled fatigue value.