Mitigating wind turbine blade noise generation in view of a minimum power generation requirement
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F03D-007/04
F03D-007/02
출원번호
US-0681266
(2012-11-19)
등록번호
US-9435320
(2016-09-06)
발명자
/ 주소
Duncan, William David
Hyde, Roderick A.
Tuckerman, David B.
Wood, Jr., Lowell L.
출원인 / 주소
Elwha LLC
인용정보
피인용 횟수 :
1인용 특허 :
9
초록▼
Described embodiments include a wind turbine system. In this embodiment, the system includes a wind turbine including a rotor blade having a controllable feature and attached to a rotor hub drivingly coupled to an electric generator. The controllable feature is configured if activated to decrease a
Described embodiments include a wind turbine system. In this embodiment, the system includes a wind turbine including a rotor blade having a controllable feature and attached to a rotor hub drivingly coupled to an electric generator. The controllable feature is configured if activated to decrease a noise generated by the rotor blade and correspondingly to decrease electric power generated by the electric generator. The wind turbine system includes a sensor configured to detect a parameter indicative of present or possible future noise generation state of the rotor blade. The wind turbine system includes a noise manager circuit configured to select a noise mitigation measure responsive to the detected parameter and in compliance with a minimum electric power generation requirement assigned to the wind turbine. The wind turbine system includes a control circuit configured to activate the controllable feature in response to the selected noise mitigation measure.
대표청구항▼
1. A system comprising: a wind turbine including a rotor blade having a controllable feature and attached to a rotor hub drivingly coupled to an electric generator, the controllable feature configured if activated to decrease a noise generated by the rotor blade and correspondingly to decrease elect
1. A system comprising: a wind turbine including a rotor blade having a controllable feature and attached to a rotor hub drivingly coupled to an electric generator, the controllable feature configured if activated to decrease a noise generated by the rotor blade and correspondingly to decrease electric power generated by the electric generator;a sensor configured to detect a parameter indicative of a present or possible future noise generation state of the rotor blade;a noise manager circuit configured to select a noise mitigation measure responsive to the detected parameter and in compliance with a minimum electric power generation requirement assigned to the wind turbine; anda control circuit configured to activate the controllable feature in response to the selected noise mitigation measure. 2. The system of claim 1, wherein the controllable feature includes an airflow-modifiable region of the rotor blade located at a portion of a longitudinal length of the rotor blade. 3. The system of claim 1, wherein the controllable feature includes a controllable rotor blade pitch. 4. The system of claim 1, wherein the sensor is configured to detect a vortex induced noise. 5. The system of claim 1, wherein the sensor includes a microphone. 6. The system of claim 1, wherein the sensor includes a pressure sensor. 7. The system of claim 1, wherein the sensor includes a vibration or an accelerometer sensor. 8. The system of claim 1, wherein the parameter includes a parameter indicative of noise generated by airflow across the rotor blade. 9. The system of claim 1, wherein the parameter includes a parameter indicative of an atmospheric variation approaching the rotor blade. 10. The system of claim 1, wherein the parameter includes a parameter indicative of noise received by a noise-alleviation zone. 11. The system of claim 10, wherein the noise-alleviation zone includes a land area having a noise tolerance rating. 12. The system of claim 1, wherein the parameter includes a parameter indicative of a noise produced or propagated by airflow across the rotor blade. 13. The system of claim 1, wherein the parameter includes a parameter indicative of a noise produced or propagated by unstalled airflow across the rotor blade. 14. The system of claim 1, wherein the parameter includes turbulence induced noise. 15. The system of claim 1, wherein the minimum electric power generation requirement is responsive to a time of day. 16. The system of claim 1, wherein the minimum electric power generation requirement is responsive to a weather condition. 17. The system of claim 1, wherein the minimum electric power generation requirement is responsive to a wind direction. 18. The system of claim 1, wherein the minimum electric power generation requirement is responsive to a target cumulative electric power generation requirement over a period of time. 19. The system of claim 1, wherein the minimum electric power generation requirement includes a maximum allowable percentage reduction in present electric power generation. 20. The system of claim 1, wherein the minimum electric power generation requirement is responsive to a minimum monetary value of electric power generation over a period of time. 21. The system of claim 1, wherein the minimum electric power generation requirement is responsive to a noise sensitivity of a noise-alleviation zone lying potentially downwind of the wind turbine. 22. The system of claim 1, wherein the noise mitigation measure is selected in response to instantaneous values of the detected parameter. 23. The system of claim 1, wherein the noise mitigation measure is selected in response to an average value of the detected parameter over a period of time. 24. The system of claim 1, wherein the noise mitigation measure is selected in response to cumulative values of the detected parameter and electric power generation over a period of time. 25. The system of claim 1, wherein the noise mitigation measure is selected in response to weighted values of the detected parameter and electric power generation over a period of time. 26. The system of claim 1, wherein the noise mitigation measure includes changing an orientation of a portion of the rotor blade. 27. The wind turbine system of claim 1, wherein the noise mitigation measure includes dynamically shaping airflow over at least a portion of the rotor blade. 28. The wind turbine system of claim 1, wherein the noise mitigation measure includes releasing air from a region on the rotor blade. 29. The wind turbine system of claim 1, wherein the noise mitigation measure includes creating a transpiration airflow on at least a portion of the rotor blade. 30. A system comprising: a wind turbine including a rotor blade having a controllable feature and attached to a rotor hub drivingly coupled to an electric generator, the controllable feature configured if activated to decrease a noise generated by the rotor blade and correspondingly to decrease electric power generated by the electric generator;a sensor configured to detect a parameter indicative of a present or possible future noise generation state of the rotor blade; anda controller circuit configured to select a noise mitigation measure responsive to the detected parameter and in compliance with a minimum electric power generation requirement assigned to the wind turbine, and to activate the controllable feature in response to the selected noise mitigation measure. 31. A system comprising: a first wind turbine including a first rotor blade having a first controllable feature and attached to a first rotor hub drivingly coupled to a first electric generator, the first controllable feature configured if activated to decrease a first noise generated by the first rotor blade and correspondingly to decrease a first electric power generated by the first electric generator;a second wind turbine including a second rotor blade having a second controllable feature and attached to a second rotor hub drivingly coupled to a second electric generator, the second controllable feature configured if activated to decrease a second noise generated by the second rotor blade and correspondingly to decrease a second electric power generated by the second electric generator;a sensor configured to detect a parameter indicative of a present or possible future noise generation state of the first rotor blade or of the second rotor blade;a noise manager circuit configured to select a noise mitigation measure (i) responsive to the detected parameter and (ii) in compliance with a first minimum electric power generation requirement assigned to the first electric generator and a second minimum power generation requirement assigned to the second electric generator; anda control system configured to activate the first controllable feature or second controllable feature as appropriate to implement the selected noise mitigation measure. 32. A method comprising: detecting a parameter indicative of a present or possible future noise generation state of a rotating rotor blade having a controllable feature and attached to a rotor hub driving an electric generator, the controllable feature configured to decrease a noise generated by the rotating rotor blade if activated;selecting a noise mitigation measure responsive to the detected parameter and in compliance with a minimum electric power generation requirement assigned to the electric generator; andactivating the controllable feature of the rotating rotor blade in response to the selected noise mitigation measure. 33. A method comprising: detecting a parameter indicative of a present or possible future noise generation state of each rotating rotor blade of at least two rotating rotor blades, each rotating rotor blade respectively having a controllable feature and attached to a respective rotor hub driving a respective electric generator, each controllable feature configured to decrease a noise generated by its respective rotating rotor blade if activated;selecting a noise mitigation measure responsive to the detected parameter and in compliance with a minimum electric power generation requirement assigned to each electric generator of the respective electric generators; andactivating a controllable feature of a rotating rotor blade of the at least two rotating rotor blades as appropriate to implement the selected noise mitigation measure.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (9)
Bak, Dan Christian; Buhl, Thomas; Fuglsang, Peter; Madsen, Helge Aagaard; Rasmussen, Flemming, Control of power, loads and/or stability of a horizontal axis wind turbine by use of variable blade geometry control.
Avagliano,Aaron; Lyons,James Patrick Francis; Barbu,Corneliu; Suryanarayanan,Shashikanth, System and method for upwind speed based control of a wind turbine.
Duncan, William David; Hyde, Roderick A.; Tuckerman, David B.; Wood, Jr., Lowell L., Mitigating wind turbine blade noise generation in response to an atmospheric variation.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.