公开(公告)号：US20170260967A1

公开(公告)日：2017-09-14

申请号：US15509636

申请日：2015-09-10

Applicant: LM WP PATENT HOLDING A/S

Inventor： Peter BÆK ,  Michael KLITGAARD ,  Claus BYSKOV

IPC: F03D17/00 ,  F03D7/02 ,  G01S11/02 ,  F03D1/06 ,  G01C3/06

CPC classification number: F03D17/00 ,  F03D1/0675 ,  F03D7/0224 ,  F05B2260/83 ,  F05B2270/17 ,  F05B2270/33 ,  F05B2270/821 ,  G01C3/06 ,  G01S11/02 ,  Y02E10/721

Abstract: A method for the calculation of a wind turbine blade deflection is described. The method utilises a known blade modal profile in the calculation of the blade deflection, such that the a priori knowledge of the blade excitation modes can be used with a simple distance measurement to determine the blade deflection shape. The calculated blade deflection can then be used as an input to control wind turbine operation, e.g. where it is likely that the deflected blade might result in a tower strike.