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    2.
    发明专利
    未知

    公开(公告)号：FI814151L

    公开(公告)日：1982-06-25

    申请号：FI814151

    申请日：1981-12-23

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： PATRICK JOHN P ,  KOS JOSEPH M ,  HARNER KERMIT I

    IPC: F03D7/04 ,  F03D7/02 ,  F03D

    Abstract: A blade pitch angle control for a wind turbine-generator establishing an optimum power or torque reference signal which, when operating conditions so warrant, is not limited by the nominal torque or power ratings of various turbine generator components. The reference signal is indicative of a maximum blade angle setting for safe operation of the wind turbine. An integral or lag compensation circuit for enhanced transient and steady-state operation may be employed.

    PREDICTED MOTION WIND TURBINE TOWER DAMPING
    3.
    发明专利
    PREDICTED MOTION WIND TURBINE TOWER DAMPING 未知

    公开(公告)号：CA1186393A

    公开(公告)日：1985-04-30

    申请号：CA421133

    申请日：1983-02-08

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： HARNER KERMIT I ,  PATRICK JOHN P ,  KOS JOSEPH M

    IPC: F03D7/04 ,  F03D7/02 ,  F03D13/20 ,  F03D11/00

    Abstract: Predicted Motion Wind Turbine Tower Damping 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

    4.
    发明专利
    未知

    公开(公告)号：FR2496774A1

    公开(公告)日：1982-06-25

    申请号：FR8124204

    申请日：1981-12-24

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： PATRICK JOHN P ,  KOS JOSEPH M ,  HARNER KERMIT I

    IPC: F03D7/04 ,  F03D7/02 ,  F03D7/00

    Abstract: A blade pitch angle control for a wind turbine-generator establishing an optimum power or torque reference signal which, when operating conditions so warrant, is not limited by the nominal torque or power ratings of various turbine generator components. The reference signal is indicative of a maximum blade angle setting for safe operation of the wind turbine. An integral or lag compensation circuit for enhanced transient and steady-state operation may be employed.

    BLADE PITCH ANGLE CONTROL FOR A WIND TURBINE GENERATOR
    5.
    发明专利
    BLADE PITCH ANGLE CONTROL FOR A WIND TURBINE GENERATOR 未知

    公开(公告)号：CA1161899A

    公开(公告)日：1984-02-07

    申请号：CA392787

    申请日：1981-12-21

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： PATRICK JOHN P ,  KOS JOSEPH M ,  HARNER KERMIT I

    IPC: F03D7/04 ,  F03D7/02 ,  F03D9/00 ,  H02P9/04

    Abstract: Blade Pitch Angle Control For a Wind Turbine Generator A blade pitch angle control for a wind turbinegenerator establishing an optimum power or torque reference signal which, when operating conditions so warrant, is not limited by the nominal torque or power ratings of various turbine generator components. The reference signal is indicative of a maximum blade angle setting for safe operation of the wind turbine. An integral or lag compensation circuit for enhanced transient and steady-state operation may be employed. H1014-PP

    6.
    发明专利
    未知

    公开(公告)号：BR8108292A

    公开(公告)日：1982-10-05

    申请号：BR8108292

    申请日：1981-12-21

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： PATRICK JOHN P ,  KOS JOSEPH M ,  HARNER KERMIT I

    IPC: F03D7/04 ,  F03D7/02 ,  F03D9/00

    Abstract: A blade pitch angle control for a wind turbine-generator establishing an optimum power or torque reference signal which, when operating conditions so warrant, is not limited by the nominal torque or power ratings of various turbine generator components. The reference signal is indicative of a maximum blade angle setting for safe operation of the wind turbine. An integral or lag compensation circuit for enhanced transient and steady-state operation may be employed.

    MULTI-MODE CONTROL SYSTEM FOR WIND TURBINES
    9.
    发明专利
    MULTI-MODE CONTROL SYSTEM FOR WIND TURBINES 未知

    公开(公告)号：CA1120538A

    公开(公告)日：1982-03-23

    申请号：CA330730

    申请日：1979-06-27

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： KOS JOSEPH M ,  PATRICK JOHN P ,  HARNER KERMIT I

    IPC: F03D9/00 ,  F03D7/02 ,  F03D7/04 ,  H02P9/04 ,  F03D7/00

    Abstract: U. S. Ser. No. 934,65 MULTI MODE CONTROL SYSTEM FOR WIND TURBINES A multi-mode electronic wind turbine control system establishes a reference blade angle for a two-bladed, horizontal axis, variable pitch wind turbine rotor, the blade angle being regulated by a hydraulic pitch change mechanism. The rotor, via appropriate shafts and a gearbox, is coupled to a synchronous generator to produce electrical energy which is fed to a power utility grid. The control system provides closed loop pitch control for rotor acceleration rate during start-up, for rotor deceleration rate during shutdown, for speed control when the synchronous generator is off-line, and for power control when the synchronous generator is on-line. A single control integrator is used for all closed loop operating modes, with a rate limiter circuit in front of the control integrator to prevent integrator overtravel. The integrator has maximum and minimum blade angle stops, the minimum stop being variable as a function of rotor speed and wind speed. When on-line, power control is provided by a unique shaft torque control using proportional plus integral plus derivative controls in combination. H893-CC

    MOTION RESPONSIVE WIND TURBINE TOWER DAMPING
    10.
    发明专利
    MOTION RESPONSIVE WIND TURBINE TOWER DAMPING 未知

    公开(公告)号：CA1186776A

    公开(公告)日：1985-05-07

    申请号：CA421062

    申请日：1983-02-07

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： KOS JOSEPH M ,  PATRICK JOHN P ,  HARNER KERMIT I

    IPC: F03D7/04 ,  F03D7/02 ,  F03D13/20 ,  F03D9/00

    Abstract: Motion Responsive Wind Turbine Tower Damping 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.

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