公开(公告)号：WO2020239178A1

公开(公告)日：2020-12-03

申请号：PCT/DK2020/050148

申请日：2020-05-26

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： THOMSEN, Jesper Sandberg ,  COUCHMAN, Ian ,  BRO, Morten

IPC: F03D7/02

Abstract: The present invention relates to a rotor control system for actuating pitch of pitch adjustable rotor blades of a wind turbine in order to reduce edgewise blade vibrations. The system comprises a pitch actuation unit being arranged to receive a torsional vibration signal and apply a filter to the torsional vibration signal to couple the torsional vibration signal to an edgewise vibration of the rotor blades. An m-blade coordinate transformation, such as the Coleman transformation, is applied to the filtered torsional vibrational signal to obtain pitch modification signals.

公开(公告)号：WO2020239177A1

公开(公告)日：2020-12-03

申请号：PCT/DK2020/050147

申请日：2020-05-26

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： THOMSEN, Jesper Sandberg ,  BRO, Morten ,  COUCHMAN, Ian

IPC: F03D7/02

Abstract: The present invention relates to a rotor control system for actuating pitch of pitch adjustable rotor blades of a wind turbine in order to reduce edgewise blade vibrations. The system comprises a pitch actuation unit being arranged to receive an edgewise load signal and apply m-blade coordinate transformations, such as the Coleman transformations, to the edgewise load signal. Based on a selected signal component at either a backward whirling frequency or a forward whirling frequency, a modified modification signal is obtained.

公开(公告)号：EP3976960A1

公开(公告)日：2022-04-06

申请号：EP20729623.7

申请日：2020-05-26

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： THOMSEN, Jesper Sandberg ,  COUCHMAN, Ian ,  BRO, Morten

IPC: F03D7/02

公开(公告)号：EP3976959A1

公开(公告)日：2022-04-06

申请号：EP20729622.9

申请日：2020-05-26

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： THOMSEN, Jesper Sandberg ,  BRO, Morten ,  COUCHMAN, Ian

IPC: F03D7/02