公开(公告)号：ZA8303968B

公开(公告)日：1984-02-29

申请号：ZA8303968

申请日：1983-06-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HARNER KERMIT IVAN ,  JOHN PETER PATRICK ,  VOSSELER KENNETH FRANKLYN

IPC: F03D7/04 ,  F03D7/02 ,  F01D ,  F03B ,  F03D

CPC classification number: F03D7/0224 ,  F05B2260/74 ,  Y02E10/723

公开(公告)号：NO832216A

公开(公告)日：1983-12-23

申请号：NO832216

申请日：1983-06-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HARNER KERMIT IVAN ,  PATRICK JOHN PETER ,  VOSSELER KENNETH FRANKLYN

IPC: F03D7/04 ,  F03D7/02 ,  F03D

CPC classification number: F03D7/0224 ,  F05B2260/74 ,  Y02E10/723

公开(公告)号：FI832192L

公开(公告)日：1983-12-23

申请号：FI832192

申请日：1983-06-16

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HARNER KERMIT IVAN ,  PATRICK JOHN PETER ,  VOSSELER KENNETH FRANKLYN

IPC: F03D7/04 ,  F03D7/02 ,  F03D

Abstract: A blade feathering system for wind turbines includes a feather actuator (299), control means (330 and 335) operatively connected thereto and an adjustment means (340) operatively connected to the control means for selectively varying the rate of operation of the feather actuator for feathering the wind turbine blades (10 and 15) at a variable rate.

公开(公告)号：ZA831631B

公开(公告)日：1983-11-30

申请号：ZA831631

申请日：1983-03-09

Applicant: UNITED TECHNOLOGIES CORP

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

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

Abstract: An accelerometer (1) disposed on the support tower (12) of a wind turbine electric generating system in the vicinity of the rotor (10, 16) thereof provides a signal (1) indicative of acceleration of the tower in the direction of the rotor rotational axis. The signal (2) is passed through a band-pass filter (4) for summation (9) with a torque/power controlled (100) blade pitch angle reference rate signal (98), the integral (104) of which provides a blade pitch angle reference signal (40) to control the pitch angle of the rotor blades (10) through a pitch change mechanism (38), thereby to provide additional, positive aerodynamic damping to the tower while modulating blade angle for constant torque/power in response to wind turbulence.

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：DK508483D0

公开(公告)日：1983-11-07

申请号：DK508483

申请日：1983-11-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HARNER KERMIT IVAN ,  NIESSEN FRANK RICHARD ,  SHERMAN ROBERT

IPC: F03D7/04 ,  F03D7/02 ,  F03D

Abstract: A blade pitch angle control system for a wind turbine includes an improved control means (95) for providing a minimum pitch angle reference signal indicative of desired blade pitch at wind velocities less than rated. The control means includes means (35 and 30) for providing signals indicative of generated (output power or torque and the rotational frequency of the wind turbine rotor. The output and rotor speed signals are input to a function generator which, in rsponse to such signals, provides a signal indicative of the minimum pitch angle.

公开(公告)号：GB2117933A

公开(公告)日：1983-10-19

申请号：GB8305992

申请日：1983-03-04

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: F03D7/04 ,  F03D7/02 ,  F03D13/20 ,  G05D17/02 ,  G05D19/02 ,  G05D27/02 ,  G05D29/00

Abstract: An accelerometer (1) disposed on the support tower (12) of a wind turbine electric generating system in the vicinity of the rotor (10, 16) thereof provides a signal (1) indicative of acceleration of the tower in the direction of the rotor rotational axis. The signal (2) is passed through a band-pass filter (4) for summation (9) with a torque/power controlled (100) blade pitch angle reference rate signal (98), the integral (104) of which provides a blade pitch angle reference signal (40) to control the pitch angle of the rotor blades (10) through a pitch change mechanism (38), thereby to provide additional, positive aerodynamic damping to the tower while modulating blade angle for constant torque/power in response to wind turbulence.

公开(公告)号：FR2524570A1

公开(公告)日：1983-10-07

申请号：FR8305316

申请日：1983-03-31

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: F03D7/04 ,  F03D7/02 ,  F03D13/20

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：NO830944L

公开(公告)日：1983-10-03

申请号：NO830944

申请日：1983-03-17

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: F03D7/04 ,  F03D7/02 ,  F03D13/20 ,  F03D

Abstract: An accelerometer (1) disposed on the support tower (12) of a wind turbine electric generating system in the vicinity of the rotor (10, 16) thereof provides a signal (1) indicative of acceleration of the tower in the direction of the rotor rotational axis. The signal (2) is passed through a band-pass filter (4) for summation (9) with a torque/power controlled (100) blade pitch angle reference rate signal (98), the integral (104) of which provides a blade pitch angle reference signal (40) to control the pitch angle of the rotor blades (10) through a pitch change mechanism (38), thereby to provide additional, positive aerodynamic damping to the tower while modulating blade angle for constant torque/power in response to wind turbulence.

公开(公告)号：FI831030A0

公开(公告)日：1983-03-25

申请号：FI831030

申请日：1983-03-25

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: F03D7/04 ,  F03D7/02 ,  F03D13/20 ,  F03D

Abstract: An accelerometer (1) disposed on the support tower (12) of a wind turbine electric generating system in the vicinity of the rotor (10, 16) thereof provides a signal (1) indicative of acceleration of the tower in the direction of the rotor rotational axis. The signal (2) is passed through a band-pass filter (4) for summation (9) with a torque/power controlled (100) blade pitch angle reference rate signal (98), the integral (104) of which provides a blade pitch angle reference signal (40) to control the pitch angle of the rotor blades (10) through a pitch change mechanism (38), thereby to provide additional, positive aerodynamic damping to the tower while modulating blade angle for constant torque/power in response to wind turbulence.