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公开(公告)号：DK211487D0
公开(公告)日：1987-04-27
申请号：DK211487
申请日：1987-04-27
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
Abstract: A variable speed wind turbine is controlled in a way which avoids the turbine lingering at a critical speed which would otherwise tend to cause excessive vibration. The disclosed method and apparatus increases speed at a selected rate with respect to generator output power except in the vicinity of the critical speed. The selected rate is changed in the vicinity of the critical speed to a different rate which is selected slower in the selected embodiment, to avoid commanding the critical speed. After the output power increases or decreases beyond the critical point, a deliberate discontinuity in the speed command signal is induced. A rapid speed change through the critical speed is accompanied by a corresponding power output change. If the speed is increasing at a selected slower rate below the critical speed, and the speed command signal is stepped to a higher level just before reaching the critical speed, the speed will rapidly increase and quickly pass through the critical speed while the power output decreases. Similarly, if the speed is decreasing at a selected slower rate above the critical speed, and the speed command signal is stepped to a lower level just before reaching the critical speed, the speed will rapidly decrease and quickly pass through the critical speed while the power output increases.
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公开(公告)号：AU601410B2
公开(公告)日：1990-09-13
申请号：AU7221487
申请日：1987-04-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
Abstract: A variable speed wind turbine is controlled in a way which avoids the turbine lingering at a critical speed which would otherwise tend to cause excessive vibration. The disclosed method and apparatus increases speed at a selected rate with respect to generator output power except in the vicinity of the critical speed. The selected rate is changed in the vicinity of the critical speed to a different rate which is selected slower in the selected embodiment, to avoid commanding the critical speed. After the output power increases or decreases beyond the critical point, a deliberate discontinuity in the speed command signal is induced. A rapid speed change through the critical speed is accompanied by a corresponding power output change. If the speed is increasing at a selected slower rate below the critical speed, and the speed command signal is stepped to a higher level just before reaching the critical speed, the speed will rapidly increase and quickly pass through the critical speed while the power output decreases. Similarly, if the speed is decreasing at a selected slower rate above the critical speed, and the speed command signal is stepped to a lower level just before reaching the critical speed, the speed will rapidly decrease and quickly pass through the critical speed while the power output increases.
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公开(公告)号：AU7221487A
公开(公告)日：1987-10-29
申请号：AU7221487
申请日：1987-04-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
Abstract: A variable speed wind turbine is controlled in a way which avoids the turbine lingering at a critical speed which would otherwise tend to cause excessive vibration. The disclosed method and apparatus increases speed at a selected rate with respect to generator output power except in the vicinity of the critical speed. The selected rate is changed in the vicinity of the critical speed to a different rate which is selected slower in the selected embodiment, to avoid commanding the critical speed. After the output power increases or decreases beyond the critical point, a deliberate discontinuity in the speed command signal is induced. A rapid speed change through the critical speed is accompanied by a corresponding power output change. If the speed is increasing at a selected slower rate below the critical speed, and the speed command signal is stepped to a higher level just before reaching the critical speed, the speed will rapidly increase and quickly pass through the critical speed while the power output decreases. Similarly, if the speed is decreasing at a selected slower rate above the critical speed, and the speed command signal is stepped to a lower level just before reaching the critical speed, the speed will rapidly decrease and quickly pass through the critical speed while the power output increases.
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公开(公告)号：ES2000996B3
公开(公告)日：1991-07-01
申请号：ES87630072
申请日：1987-04-24
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
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公开(公告)号：DE3767020D1
公开(公告)日：1991-02-07
申请号：DE3767020
申请日：1987-04-24
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
Abstract: A variable speed wind turbine is controlled in a way which avoids the turbine lingering at a critical speed which would otherwise tend to cause excessive vibration. The disclosed method and apparatus increases speed at a selected rate with respect to generator output power except in the vicinity of the critical speed. The selected rate is changed in the vicinity of the critical speed to a different rate which is selected slower in the selected embodiment, to avoid commanding the critical speed. After the output power increases or decreases beyond the critical point, a deliberate discontinuity in the speed command signal is induced. A rapid speed change through the critical speed is accompanied by a corresponding power output change. If the speed is increasing at a selected slower rate below the critical speed, and the speed command signal is stepped to a higher level just before reaching the critical speed, the speed will rapidly increase and quickly pass through the critical speed while the power output decreases. Similarly, if the speed is decreasing at a selected slower rate above the critical speed, and the speed command signal is stepped to a lower level just before reaching the critical speed, the speed will rapidly decrease and quickly pass through the critical speed while the power output increases.
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Patent Agency Ranking
公开(公告)号：ES2000996A4
公开(公告)日：1988-04-16
申请号：ES87630072
申请日：1987-04-24
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
Abstract: UNA TURBINA DE VIENTO QUE SE CONTROLA DE UNA FORMA QUE EVITA QUE LA TURBINA PERSISTA EN UNA VELOCIDAD CRITICA QUE PODRIA OCASIONAR VIBRACION EXCESIVA. EL METODO Y APARATO DECUBIERTOS INCREMENTAN LA VELOCIDAD EN UNA PROPORCION SELECCIONADA CON RESPECTO AL GENERADOR DE SALIDA DE POTENCIA, EXCEPTO EN LA PROXIMIDAD DE LA VELOCIDAD CRITICA. LA PROPORCION SELECCIONADA SE CAMBIA EN LA PROXIMIDAD DE LA VELOCIDAD CRITICA A UNA PROPORCION DIFERENTE QUE SE SELECCIONA INFERIOR, A FIN DE EVITAR LA VELOCIDAD CRITICA. DESPUES DE QUE LA POTENCIA DE SALIDA SE INCREMENTE O SE DECREMENTE POR DEBAJO DEL PUNTO CRITICO, UNA DISCONTINUIDAD DELIBERADA EN LA SEÑAL DE COMANDO DE LA VELOCIDAD SE INDUCE. UN RAPIDO CAMBIO A TRAVES DE LA VELOCIDAD CRITICA SE ACOMPAÑA POR EL CORRESPONDIENTE CAMBIO DE SALIDA DE POTENCIA. SI LA VELOCIDAD SE INCREMENTA EN UNA CANTIDAD SELECCIONADA POR DEBAJO DE LA VELOCIDAD CRITICA, Y LAS SEÑALES DE COMANDO DE LA VELOCIDAD SUBEN A UN NIVEL SUPERIOR JUSTO ANTES DE ALCANZAR LA VELOCIDAD CRITICA, LA VELOCIDAD SE INCREMENTARA RAPIDAMENTE Y PASARA RAPIDAMENTE A TRAVES DE LA VELOCIDAD CRITICA MIENTRAS LA SALIDA DE POTENCIA SE REDUCE. SIMILARMENTE, SI LA VELOCIDAD SE ESTA REDUCIENDO EN UNA CANTIDAD SELECCIONADA CERCA DE LA VELOCIDAD CRITICA, Y LAS SEÑALES DE CONTROL DE LA VELOCIDAD BAJAN A UN NIVEL INFERIOR JUSTO ANTES DE ALCANZAR LA VELOCIDAD CRITICA, LA VELOCIDAD SE REDUCIRA RAPIDAMENTE Y RAPIDAMENTE PASARA A TRAVES DE LA VELOCIDAD CRITICA MIENTRAS LA SALIDA DE POTENCIA SE REDUCE.
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公开(公告)号：BR8702048A
公开(公告)日：1988-02-09
申请号：BR8702048
申请日：1987-04-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
Abstract: A variable speed wind turbine is controlled in a way which avoids the turbine lingering at a critical speed which would otherwise tend to cause excessive vibration. The disclosed method and apparatus increases speed at a selected rate with respect to generator output power except in the vicinity of the critical speed. The selected rate is changed in the vicinity of the critical speed to a different rate which is selected slower in the selected embodiment, to avoid commanding the critical speed. After the output power increases or decreases beyond the critical point, a deliberate discontinuity in the speed command signal is induced. A rapid speed change through the critical speed is accompanied by a corresponding power output change. If the speed is increasing at a selected slower rate below the critical speed, and the speed command signal is stepped to a higher level just before reaching the critical speed, the speed will rapidly increase and quickly pass through the critical speed while the power output decreases. Similarly, if the speed is decreasing at a selected slower rate above the critical speed, and the speed command signal is stepped to a lower level just before reaching the critical speed, the speed will rapidly decrease and quickly pass through the critical speed while the power output increases.
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公开(公告)号：NO871728L
公开(公告)日：1987-10-29
申请号：NO871728
申请日：1987-04-27
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
Abstract: A variable speed wind turbine is controlled in a way which avoids the turbine lingering at a critical speed which would otherwise tend to cause excessive vibration. The disclosed method and apparatus increases speed at a selected rate with respect to generator output power except in the vicinity of the critical speed. The selected rate is changed in the vicinity of the critical speed to a different rate which is selected slower in the selected embodiment, to avoid commanding the critical speed. After the output power increases or decreases beyond the critical point, a deliberate discontinuity in the speed command signal is induced. A rapid speed change through the critical speed is accompanied by a corresponding power output change. If the speed is increasing at a selected slower rate below the critical speed, and the speed command signal is stepped to a higher level just before reaching the critical speed, the speed will rapidly increase and quickly pass through the critical speed while the power output decreases. Similarly, if the speed is decreasing at a selected slower rate above the critical speed, and the speed command signal is stepped to a lower level just before reaching the critical speed, the speed will rapidly decrease and quickly pass through the critical speed while the power output increases.
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公开(公告)号：NO871728A
公开(公告)日：1987-10-29
申请号：NO871728
申请日：1987-04-27
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
CPC classification number: F03D7/042 , F03D7/0272 , F03D7/0276 , F03D9/255 , F03D15/10 , F03D17/00 , F05B2270/101 , F05B2270/327 , F05B2270/335 , H02P9/42 , H02P2101/15 , Y02E10/723
Abstract: A variable speed wind turbine is controlled in a way which avoids the turbine lingering at a critical speed which would otherwise tend to cause excessive vibration. The disclosed method and apparatus increases speed at a selected rate with respect to generator output power except in the vicinity of the critical speed. The selected rate is changed in the vicinity of the critical speed to a different rate which is selected slower in the selected embodiment, to avoid commanding the critical speed. After the output power increases or decreases beyond the critical point, a deliberate discontinuity in the speed command signal is induced. A rapid speed change through the critical speed is accompanied by a corresponding power output change. If the speed is increasing at a selected slower rate below the critical speed, and the speed command signal is stepped to a higher level just before reaching the critical speed, the speed will rapidly increase and quickly pass through the critical speed while the power output decreases. Similarly, if the speed is decreasing at a selected slower rate above the critical speed, and the speed command signal is stepped to a lower level just before reaching the critical speed, the speed will rapidly decrease and quickly pass through the critical speed while the power output increases.
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公开(公告)号：FI89534C
公开(公告)日：1993-10-11
申请号：FI871872
申请日：1987-04-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOS JOSEPH MICHAEL , RAPP ALLEN FLOYD
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