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公开(公告)号:AU582981B2
公开(公告)日:1989-04-13
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:BR8605672A
公开(公告)日:1987-08-18
申请号:BR8605672
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:NO864565L
公开(公告)日:1987-05-19
申请号:NO864565
申请日:1986-11-17
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DIVALENTIN EUGENE D , HEALY HENRY STEPHEN
Abstract: Apparatus and method for controlling a variable speed wind turbine-generator at improved efficiencies is disclosed. The method and apparatus of the invention control the rotor tip speed below the limiting torque of the wind turbine at a selected constant velocity ratio with respect to wind speed and. above the limiting torque, control the rotor tip speed at speeds greater than those dictated by the constant velocity ratio up to a speed or power limit. This may be accomplished by controlling tip speed above the point where limiting torque is attainable to maintain optimal wind turbine performance along the performance envelope.
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公开(公告)号:NO864564A
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
CPC classification number: H02P9/42 , F03D7/0272 , F03D9/255 , F03D15/10 , F03D17/00 , F05B2220/706 , F05B2260/96 , F05B2270/101 , F05B2270/1016 , F05B2270/1032 , F05B2270/20 , F05B2270/327 , H02P2101/15 , Y02E10/723 , Y02E10/725
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:NO864564D0
公开(公告)日:1986-11-17
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
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:ES2019070B3
公开(公告)日:1991-06-01
申请号:ES86630169
申请日:1986-11-13
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DIVALENTIN EUGENE D , HEALY HENRY STEPHEN
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公开(公告)号:AU599283B2
公开(公告)日:1990-07-12
申请号:AU6552086
申请日:1986-11-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DIVALENTIN EUGENE D , HEALY HENRY STEPHEN
Abstract: Apparatus and method for controlling a variable speed wind turbine-generator at improved efficiencies is disclosed. The method and apparatus of the invention control the rotor tip speed below the limiting torque of the wind turbine at a selected constant velocity ratio with respect to wind speed and. above the limiting torque, control the rotor tip speed at speeds greater than those dictated by the constant velocity ratio up to a speed or power limit. This may be accomplished by controlling tip speed above the point where limiting torque is attainable to maintain optimal wind turbine performance along the performance envelope.
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公开(公告)号:ZA8608745B
公开(公告)日:1987-07-29
申请号:ZA8608745
申请日:1986-11-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DIVALENTIN EUGENE D , HEALY HENRY STEPHEN
CPC classification number: F03D7/0224 , F03D7/0272 , F05B2220/706 , F05B2270/1016 , F05B2270/1032 , F05B2270/20 , F05B2270/327 , H02P9/42 , H02P2101/15 , Y02E10/723 , Y02E10/725
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公开(公告)号:ZA8608593B
公开(公告)日:1987-06-24
申请号:ZA8608593
申请日:1986-11-12
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DOMAN GLIDDEN SWEET , KOS JOSEPH MICHAEL , HARNER KERMIT IVAN , DIVALENTIN EUGENE D , HEALY HENRY STEPHEN
CPC classification number: H02P9/42 , F03D7/0272 , F03D9/255 , F03D15/10 , F03D17/00 , F05B2220/706 , F05B2260/96 , F05B2270/101 , F05B2270/1016 , F05B2270/1032 , F05B2270/20 , F05B2270/327 , H02P2101/15 , Y02E10/723 , Y02E10/725
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:AU6552086A
公开(公告)日:1987-05-21
申请号:AU6552086
申请日:1986-11-18
Applicant: UNITED TECHNOLOGIES CORP
Inventor: DIVALENTIN EUGENE D , HEALY HENRY STEPHEN
Abstract: Apparatus and method for controlling a variable speed wind turbine-generator at improved efficiencies is disclosed. The method and apparatus of the invention control the rotor tip speed below the limiting torque of the wind turbine at a selected constant velocity ratio with respect to wind speed and. above the limiting torque, control the rotor tip speed at speeds greater than those dictated by the constant velocity ratio up to a speed or power limit. This may be accomplished by controlling tip speed above the point where limiting torque is attainable to maintain optimal wind turbine performance along the performance envelope.
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