公开(公告)号：ZA8301632B

公开(公告)日：1983-11-30

申请号：ZA8301632

申请日：1983-03-09

Applicant: UNITED TECHNOLOGIES CORP

Inventor： KOS JOSEPH MICHAEL ,  PATRIC JOHN PETER ,  HARNER KERMIT IVAN

IPC: F03D7/04 ,  F03D7/02 ,  F03D13/20 ,  F03B ,  F03D ,  G01P ,  H02K

CPC classification number: F03D7/043 ,  F03D7/0224 ,  F03D7/0292 ,  F03D9/25 ,  F03D80/00 ,  F05B2240/912 ,  F05B2260/821 ,  F05B2260/96 ,  F05B2270/1033 ,  F05B2270/322 ,  F05B2270/335 ,  Y02E10/723 ,  Y02E10/728

Abstract: Damping of the primary bending mode of a tower (12) mounting a wind turbine having a control (36) for providing a pitch blade angle reference signal (40) to modulate the pitch of the turbine blades (1) through a pitch change mechanism (38) for constant power is provided by generating the pitch blade angle reference signal as the integral (104) of the summation (266) of a torque/power controlling blade pitch angle reference rate signal (98) with an estimated acceleration signal (255) generated by filtering (250, 252, 254) the blade pitch angle reference signal (40) with the following transfer function

公开(公告)号：ZA831632B

公开(公告)日：1983-11-30

申请号：ZA831632

申请日：1983-03-09

Applicant: UNITED TECHNOLOGIES CORP

Inventor： KOS JOSEPH MICHAEL ,  PATRIC JOHN PETER ,  HARNER KERMIT IVAN

IPC: F03D7/04 ,  F03D7/02 ,  F03D13/20 ,  F03B ,  F03D ,  G01P ,  H02K

Abstract: Damping of the primary bending mode of a tower (12) mounting a wind turbine having a control (36) for providing a pitch blade angle reference signal (40) to modulate the pitch of the turbine blades (1) through a pitch change mechanism (38) for constant power is provided by generating the pitch blade angle reference signal as the integral (104) of the summation (266) of a torque/power controlling blade pitch angle reference rate signal (98) with an estimated acceleration signal (255) generated by filtering (250, 252, 254) the blade pitch angle reference signal (40) with the following transfer function