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公开(公告)号:NO158309B
公开(公告)日:1988-05-09
申请号:NO811654
申请日:1981-05-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DOMAN GLIDDEN SWEET
Abstract: Yaw trimming in large wind turbines is achieved by laterally offsetting the turbine yaw axis from the axis of rotation of the hub.
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公开(公告)号:AU6536686A
公开(公告)日:1987-05-21
申请号:AU6536686
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
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.
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公开(公告)号:AU2099883A
公开(公告)日:1984-05-17
申请号:AU2099883
申请日:1983-11-04
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DOMAN GLIDDEN SWEET
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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公开(公告)号:NO833992A
公开(公告)日:1984-05-09
申请号:NO833992
申请日:1983-11-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DOMAN GLIDDEN SWEET
CPC classification number: F03D7/0204 , Y02E10/723 , Y10S416/06 , Y10S416/50
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公开(公告)号:FI834073A0
公开(公告)日:1983-11-07
申请号:FI834073
申请日:1983-11-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DOMAN GLIDDEN SWEET
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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公开(公告)号:DE3113384A1
公开(公告)日:1982-04-08
申请号:DE3113384
申请日:1981-04-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DOMAN GLIDDEN SWEET
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.
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公开(公告)号:NO811654L
公开(公告)日:1981-11-20
申请号:NO811654
申请日:1981-05-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DOMAN GLIDDEN SWEET
Abstract: Yaw trimming in large wind turbines is achieved by laterally offsetting the turbine yaw axis from the axis of rotation of the hub.
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公开(公告)号:NO811264A
公开(公告)日:1981-10-23
申请号:NO811264
申请日:1981-04-13
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DOMAN GLIDDEN SWEET
CPC classification number: F03D7/0224 , F03D15/00 , F05B2270/20 , Y02E10/723 , Y10S416/50
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.
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