公开(公告)号：US20180180030A1

公开(公告)日：2018-06-28

申请号：US15738171

申请日：2016-06-23

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Morten THØGERSEN ,  Fabio CAPONETTI ,  Dan HILTON

IPC: F03D17/00 ,  G01L5/12

CPC classification number: F03D17/00 ,  F03D1/06 ,  F05B2240/21 ,  F05B2260/80 ,  F05B2260/83 ,  F05B2260/84 ,  F05B2270/331 ,  F05B2270/807 ,  F05B2270/808 ,  G01L5/12 ,  G01M15/14 ,  Y02E10/721

Abstract: A method of measuring load on a wind turbine, and a wind turbine for such load measuring, are disclosed. The wind turbine comprises at least one rotor blade and at least one load sensor associated with the rotor blade. At least one load sensor is located at a position on the rotor blade remote from both a flap bending moment axis and an edge bending moment axis of the rotor blade. At the position, a flap bending moment component and an edge bending moment component of the load on the rotor blade are measurable. A load value is measured from the load sensor, and the measured load value is used to determine a flap bending moment component of the load and an edge bending moment component of the load, and optionally or additionally an axial force component of the load.

公开(公告)号：US20190048848A1

公开(公告)日：2019-02-14

申请号：US16076648

申请日：2017-02-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Lars GLAVIND ,  Ib Svend OLESEN ,  Morten THØGERSEN ,  Kristian KIIB ,  Johnny NIELSEN

IPC: F03D7/02

Abstract: A yaw sensor for a wind turbine comprises a plurality of rotary switches, each configured to be coupled to a yaw drive gearbox of a wind turbine nacelle, the rotary switches each being operable to activate and deactivate respective associated electrical contacts in dependence on an amount of yaw rotation of the nacelle relative to a start position.Each electrical contact is active at a plurality of first yaw rotation ranges with respect to the start position, and inactive at a plurality of second yaw rotation ranges with respect to the start position, the first and second yaw rotation ranges being interleaved.