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    2.
    发明专利
    未知

    公开(公告)号：DK162359B

    公开(公告)日：1991-10-14

    申请号：DK508383

    申请日：1983-11-07

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： DOMAN GLIDDEN SWEET

    IPC: F03D7/02 ,  F03D7/04 ,  F15B11/08 ,  F03D1/00

    Abstract: Yaw (fishtail) oscillations in large wind turbines (10) are minimized by damping provided by a drive motor (65) connecting the turbine to the supporting tower (50) therefor at, for example, a yaw bearing (45). The drive motor drives the wind turbine in yaw and maintains desired yaw setting of the turbine. The motor is also capable of being driven by yaw oscillations of the wind turbine and in being so driven, dissipates the energy of such oscillations.

    4.
    发明专利
    未知

    公开(公告)号：DK153241C

    公开(公告)日：1988-11-21

    申请号：DK157981

    申请日：1981-04-08

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： DOMAN GLIDDEN SWEET

    IPC: F03D7/04 ,  F03D7/02 ,  F03D15/00 ,  F03D9/00

    Abstract: A wind turbine adapted to rotationally drive a load such as an electric power generator 50 includes in the turbine drive train, resiliently mounted gearing 55 which isolates and damps the load from drive train disturbances caused by wind gusts and wind stream dyssemmetry and inherent torsional vibration without assistance from modulation of turbine blade pitch.

    6.
    发明专利
    未知

    公开(公告)号：NO864564L

    公开(公告)日：1987-05-19

    申请号：NO864564

    申请日：1986-11-17

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： DOMAN GLIDDEN SWEET ,  KOS JOSEPH MICHAEL ,  HARNER KERMIT IVAN ,  DIVALENTIN EUGENE D ,  HEALY HENRY STEPHEN

    IPC: F03D7/02 ,  F03D7/04 ,  F03D9/00 ,  H02P9/42 ,  F03D

    Abstract: A variable speed wind turbine includes a frequency converter which converts variable frequency AC from a turbine driven AC generator to fixed frequency AC for delivery to a power grid. The frequency converter is typically an electronic cycloconverter or rectifier-inverter and is also used to control the power flow from the AC generator to the grid which thereby controls the air gap torque between the generator stator and rotor. The turbine speed is maneuvered to increase efficiency by precisely controlling the air gap torque according to a schedule defining sensed generator speed versus sensed generated power.

    7.
    发明专利
    未知

    公开(公告)号：FI864699A

    公开(公告)日：1987-05-19

    申请号：FI864699

    申请日：1986-11-18

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： DOMAN GLIDDEN SWEET ,  KOS JOSEPH MICHAEL ,  HARNER KERMIT IVAN ,  DIVALENTIN EUGENE D ,  HEALY HENRY STEPHEN

    IPC: F03D7/04 ,  F03D7/02 ,  F03D9/00 ,  H02P9/42 ,  F03D

    Abstract: A variable speed wind turbine includes a frequency converter which converts variable frequency AC from a turbine driven AC generator to fixed frequency AC for delivery to a power grid. The frequency converter is typically an electronic cycloconverter or rectifier-inverter and is also used to control the power flow from the AC generator to the grid which thereby controls the air gap torque between the generator stator and rotor. The turbine speed is maneuvered to increase efficiency by precisely controlling the air gap torque according to a schedule defining sensed generator speed versus sensed generated power.

    8.
    发明专利
    未知

    公开(公告)号：FI864699A0

    公开(公告)日：1986-11-18

    申请号：FI864699

    申请日：1986-11-18

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： DOMAN GLIDDEN SWEET ,  KOS JOSEPH MICHAEL ,  HARNER KERMIT IVAN ,  DIVALENTIN EUGENE D ,  HEALY HENRY STEPHEN

    IPC: F03D7/04 ,  F03D7/02 ,  F03D9/00 ,  H02P9/42 ,  F03D

    Abstract: A variable speed wind turbine includes a frequency converter which converts variable frequency AC from a turbine driven AC generator to fixed frequency AC for delivery to a power grid. The frequency converter is typically an electronic cycloconverter or rectifier-inverter and is also used to control the power flow from the AC generator to the grid which thereby controls the air gap torque between the generator stator and rotor. The turbine speed is maneuvered to increase efficiency by precisely controlling the air gap torque according to a schedule defining sensed generator speed versus sensed generated power.

    9.
    发明专利
    未知

    公开(公告)号：DK508383A

    公开(公告)日：1984-05-09

    申请号：DK508383

    申请日：1983-11-07

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： DOMAN GLIDDEN SWEET

    IPC: F03D7/02 ,  F03D7/04 ,  F15B11/08 ,  F03D

    Abstract: Yaw (fishtail) oscillations in large wind turbines (10) are minimized by damping provided by a drive motor (65) connecting the turbine to the supporting tower (50) therefor at, for example, a yaw bearing (45). The drive motor drives the wind turbine in yaw and maintains desired yaw setting of the turbine. The motor is also capable of being driven by yaw oscillations of the wind turbine and in being so driven, dissipates the energy of such oscillations.

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