Method for increasing energy capture in a wind turbine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F03D-009/00
H02P-009/04
출원번호
US-0128861
(2008-05-29)
등록번호
US-8093737
(2012-01-10)
발명자
/ 주소
Wittekind, Lothar
Viripullan, Renjith
Staedler, Martin
출원인 / 주소
General Electric Company
대리인 / 주소
McNees Wallace & Nurick LLC
인용정보
피인용 횟수 :
11인용 특허 :
3
초록▼
A method for operating a wind turbine. The method includes providing a wind turbine having a variable speed control system, the control system having an initial rotational speed set point. At least two operational parameters are obtained from one or more sensors. An adjusted rotational speed set poi
A method for operating a wind turbine. The method includes providing a wind turbine having a variable speed control system, the control system having an initial rotational speed set point. At least two operational parameters are obtained from one or more sensors. An adjusted rotational speed set point greater than the initial rotational speed set point is determined in response to the operational parameter. The control system is configured with the adjusted rotational speed set point. A wind turbine and wind turbine plant are also disclosed.
대표청구항▼
1. A method for operating a wind turbine comprising: providing a wind turbine having a variable speed control system, the control system having an initial rotational speed set point value, wherein the initial rotational speed set point value is a maximum rotational speed set point for the wind turbi
1. A method for operating a wind turbine comprising: providing a wind turbine having a variable speed control system, the control system having an initial rotational speed set point value, wherein the initial rotational speed set point value is a maximum rotational speed set point for the wind turbine;obtaining at least two measured operational parameters from one or more sensors;comparing the at least two measured operational parameters to a mechanical load of the turbine, wherein if the mechanical load of the turbine is decreased as a result of the at least two measured operational parameters, then a speed control adjustment method is activated, the speed control adjustment method comprising: determining an adjusted rotational speed set point greater than the initial rotational speed set point value in response to the at least two measured and compared operational parameters; andconfiguring the control system with the adjusted rotational speed set point wherein the adjusted rotational speed set point increases the maximum rotational speed set point of the wind turbine. 2. The method of claim 1, wherein the measured operational parameters are at least two parameters selected from the group consisting of generator speed, power output, turbulence intensity, wind speed, wind direction, wind shear, a combination of ambient temperature and air pressure, air density, component temperatures, generator torque, electrical current in generator rotor, electrical current in generator stator, voltage in generator rotor, voltage in generator stator, power factor, tower top vibration, drive train vibration, yaw position and combinations thereof. 3. The method of claim 1, wherein the measured operational parameters are at least two parameters selected from the group consisting of an air turbulence intensity, air density, tower vibration, ambient temperature, wind turbine component temperature, yaw position and combinations thereof. 4. The method of claim 1, wherein the one or more sensors are arranged and disposed on or in close proximity to the wind turbine. 5. The method of claim 1, further comprising obtaining an external requirement and permitting selective configuration of the control system in response to the external requirement. 6. The method of claim 5, wherein the external requirement is selected from the group consisting of a site property, an electrical requirement and combinations thereof. 7. The method of claim 6, wherein the external requirement is a maximum power output. 8. The method of claim 7, wherein the external requirement further comprises a power factor. 9. The method of claim 5, wherein the external requirement is a power factor. 10. A wind turbine comprising: a variable speed control system, the control system having an initial rotational speed set point value, wherein the initial rotational speed set point value is a maximum rotational speed set point for the wind turbine;at least one sensor arranged and disposed to obtain at least two measured operational parameters; andwherein the control system is selectively configured to compare the at least two measured operation parameters to a mechanical load of the wind turbine, wherein if the mechanical load of the wind turbine is decreased as a result of the at least two measured operational parameters, then a speed control adjustment program is activated,wherein the speed adjustment control program determines an adjusted rotational speed set point greater than the initial rotational speed set point value in response to the at least two measured and compared operational parameters,wherein the adjusted rotational speed set point increases the maximum rotational speed set point of the wind turbine. 11. The wind turbine of claim 10, wherein the measured operational parameters are at least two parameters selected from the group consisting of generator speed, power output, turbulence intensity, wind speed, wind direction, wind shear, a combination of ambient temperature and air pressure, air density, component temperatures, generator torque, electrical current in generator rotor, electrical current in generator stator, voltage in generator rotor, voltage in generator stator, power factor, tower top vibration, drive train vibration, yaw position and combinations thereof. 12. The wind turbine of claim 10, wherein the measured operational parameters are at least two parameters selected from the group consisting of an air turbulence intensity, air density, tower vibration, ambient temperature, wind turbine component temperature, yaw position and combinations thereof. 13. The wind turbine of claim 10, wherein the one or more sensors are arranged and disposed on or in close proximity to the wind turbine. 14. The wind turbine of claim 10, wherein the control system is selectively configured in response to an external requirement.
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이 특허에 인용된 특허 (3)
Holley William E. (Pleasanton CA), Speed control system for a variable speed wind turbine.
Feddersen,Lorenz; Siebenthaler,Eckardt; Andresen,Bj철rn, Variable speed wind turbine having a passive grid side rectifier with scalar power control and dependent pitch control.
Perley, Thomas Franklin; Gerber, Brandon Shane; Gandhi, Jignesh Govindlal; Vadlamudi, Venkata Krishna, System and method for preventing excessive loading on a wind turbine.
Slack, Robert Peter; Gerber, Brandon Shane; Perley, Thomas Franklin; Movsichoff, Bernardo Adrian, System and method for thrust-speed control of a wind turbine.
Dange, Devendra Shashikant; Fric, Thomas Frank; Hardwicke, Jr., Edward Wayne; Kekkaroth, Renjith Viripullan; Pennington, Noah, System and method of wind turbine control using a torque setpoint.
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