公开(公告)号：NO864565D0

公开(公告)日：1986-11-17

申请号：NO864565

申请日：1986-11-17

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DIVALENTIN EUGENE D ,  HEALY HENRY STEPHEN

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

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.

公开(公告)号：DK547786D0

公开(公告)日：1986-11-17

申请号：DK547786

申请日：1986-11-17

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: F03D7/04 ,  F03D7/02 ,  F03D9/00 ,  H02P9/42 ,  H02P ,  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.

公开(公告)号：FI89974C

公开(公告)日：1993-12-10

申请号：FI864700

申请日：1986-11-18

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DIVALENTIN EUGENE D ,  HEALY HENRY STEPHEN

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

公开(公告)号：FI89974B

公开(公告)日：1993-08-31

申请号：FI864700

申请日：1986-11-18

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DIVALENTIN EUGENE D ,  HEALY HENRY STEPHEN

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

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.

公开(公告)号：FI89533B

公开(公告)日：1993-06-30

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

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.

公开(公告)号：ES2011020B3

公开(公告)日：1989-12-16

申请号：ES86630171

申请日：1986-11-13

Applicant: UNITED TECHNOLOGIES CORP

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

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

Abstract: Sistema de turbina eólica de velocidad variable con un coeficiente de potencia óptimo frente al ratio de velocidad de la curva de rendimiento, comprendiendo este sistema: - Un eje del rotor de la turbina (12) con un cubo (14) en un extremo con, por lo menos una pala (16), unida al cubo (14); - Una caja de cambios (18) con un lado de baja velocidad (20) unido al otro extremo del eje del rotor de la turbina (12); - Un sistema generador-convertidor (22, 30) con un generador de c.a. (22), un convertidor de frecuencia (30) y un eje de rotor de generador (24) unido al lado de alta velocidad (26) de la caja de cambios (18) proporcionando dicho convertidor (30) una potencia de salida de c.a. de frecuencia constante; - Dispositivos sensores (50; 54) para detectar la velocidad del generador y la salida de potencia eléctrica del generador y para proporcionar señales detectadas (NG; PE) indicativas de las mismas; y - Un controlador de turbina eólica de velocidad variable (36), sensible a señales detectadas (NG, PE) indicativas de la velocidad del generador y de la salida de potencia eléctrica del generador, para generar una señal de mando de generador (QE(REF)); caracterizado porque: - la señal de mando (QE(REF)) generada por el controlador (36) es una señal de mando del par de torsión para maniobras de gobierno de la velocidad del generador (NG) de acuerdo con una función que define la velocidad del generador (NG) frente a la salida de potencia eléctrica del generador (PE) la cual maniobra tiende a causar que la turbina eólica trabaje substancialmente en el coeficiente de rendimiento de la turbina eóllica (Cp) frente al ratio de velocidad (VR) de la curva de rendimiento óptimo substancialmente en el máximo de la misma; y - el generador de c.a. (22) proporciona una c.a. de frecuencia variable en una línea de salida de potencia (28) de la misma; y - un convertidor de frecuencia (30) está conectado electricamente a la línea de salida de potencia del generador (28) y es sensible a la salidac.a. del generador para convertir la c.a. de frecuencia variable en una c.a. de frecuencia constante, el convertidor de frecuencia (30) es sensible a la señal de mando del par de torsión del generador (QE(REF)) para controlar la magnitud de la potencia eléctrica convertida por el convertidor (30), mediante lo cual efectúa el control del par de torsión del generador de c.a.

公开(公告)号：DE3665904D1

公开(公告)日：1989-11-02

申请号：DE3665904

申请日：1986-11-13

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

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.

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

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

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.

公开(公告)号：DK547686D0

公开(公告)日：1986-11-17

申请号：DK547686

申请日：1986-11-17

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DIVALENTIN EUGENE D ,  HEALY HENRY STEPHEN

IPC: F03D20060101 ,  F03D7/04 ,  H02P20060101 ,  H02P9/00 ,  H02P ,  F03D

公开(公告)号：NO178905B

公开(公告)日：1996-03-18

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 ,  F03D7/00

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.