Method for controlling a wind turbine during shutdown
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0395849
(2013-04-22)
|
등록번호 |
US-9709033
(2017-07-18)
|
우선권정보 |
DK-2012 70205 (2012-04-23) |
국제출원번호 |
PCT/DK2013/050117
(2013-04-22)
|
국제공개번호 |
WO2013/159779
(2013-10-31)
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발명자
/ 주소 |
- Hammerum, Keld
- Krüger, Thomas
|
출원인 / 주소 |
|
대리인 / 주소 |
Patterson + Sheridan, LLP
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
▼
A method for controlling an individually pitched wind turbine during shutdown is disclosed, the wind turbine comprising at least three wind turbine blades (1a, 1b, 1c). In response to a shutdown command for stopping operation of the wind turbine, a blade parameter of each of the wind turbine blades
A method for controlling an individually pitched wind turbine during shutdown is disclosed, the wind turbine comprising at least three wind turbine blades (1a, 1b, 1c). In response to a shutdown command for stopping operation of the wind turbine, a blade parameter of each of the wind turbine blades (1a, 1b, 1c), e.g. pitch angle, bending moment or blade acceleration, is determined. The blade parameters of the wind turbine blades (1a, 1b, 1c) are compared, and a shutdown strategy for the wind turbine is selected from a group of two or more predefined shutdown strategies, based on the comparing step. Finally, the wind turbine blades (1a, 1b, 1c) are moved towards a feathered position in accordance with the selected shutdown strategy.
대표청구항
▼
1. A method for controlling an individually pitched wind turbine during shutdown, said wind turbine comprising at least three wind turbine blades, the method comprising: receiving a shutdown command for stopping operation of the wind turbine;determining a blade parameter of each of the wind turbine
1. A method for controlling an individually pitched wind turbine during shutdown, said wind turbine comprising at least three wind turbine blades, the method comprising: receiving a shutdown command for stopping operation of the wind turbine;determining a blade parameter of each of the wind turbine blades;comparing the blade parameters of the wind turbine blades;selecting a shutdown strategy for the wind turbine from a group of two or more predefined shutdown strategies, based on the comparing;moving the wind turbine blades towards a feathered position in accordance with the selected shutdown strategy;monitoring the blade parameters of the wind turbine blades during shutdown;selecting a new shutdown strategy from the group of two or more shutdown strategies in the case that one or more predefined criteria is/are fulfilled; andcontinuing movement of the wind turbine blades towards the feathered position in accordance with the new shutdown strategy. 2. A method according to claim 1, wherein the blade parameters are pitch angles of the wind turbine blades. 3. A method according to claim 2, wherein comparing the pitch angles comprises identifying a first wind turbine blade, a second wind turbine blade and a third wind turbine blade, wherein the first wind turbine blade is the wind turbine blade having a pitch angle which is furthest away from a feathered position, the third wind turbine blade is the wind turbine blade having a pitch angle which is closest to a feathered position, and the second wind turbine blade has an intermediate pitch angle. 4. A method according to claim 3, wherein a first shutdown strategy comprises moving the second wind turbine blade and the third wind turbine blade at a first speed, k1, and moving the first wind turbine blade at a second speed, k2, wherein k1
이 특허에 인용된 특허 (6)
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Harner Kermit I. (Windsor CT) Patrick John P. (South Windsor CT) Vosseller Kenneth F. (Enfield CT), Blade feathering system for wind turbines.
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Moroz,Emilian Mieczyslaw; Pierce,Kirk Gee, Methods and apparatus for reduction of asymmetric rotor loads in wind turbines.
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Deering Kenneth J. (Seattle WA), Rotor device and control for wind turbine.
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Mikhail Amir S. ; Christenson Craig L. ; Cousineau Kevin L. ; Erdman William L. ; Holley William E., Variable speed wind turbine generator.
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Schachle Charles (1032 Grant St. Moses Lake WA 98837) Schachle Patrick J. (18427 Military Rd. S. Seattle WA 98188) Schachle Edward C. (18427 Military Rd. S. Seattle WA 98188) Schachle John R. (625 We, Wind power generating system.
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Carter ; Sr. J.. Warne, Wind-driven electric generator apparatus of the downwind type with flexible changeable-pitch blades.
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