发明名称 |
Method and apparatus for wind turbine rotor load control |
摘要 |
Vertical and horizontal wind shears, yaw misalignment and/or turbulence act together to produce asymmetric loading across a wind turbine rotor. The resultant load produces bending moments in the blades that are reacted through the hub and subsequently to the low-speed shaft. As a result, the main shaft and main shaft flange are displaced from their at rest or non-aerodynamic load positions. The amount of shaft flange displacement is measured using one or more sensors. The output signals from the sensors are used to determine the magnitude and/or the orientation of the resultant rotor load. This information is used to effect the blade pitch change needed to reduce the load and thereby reduce fatigue and loading on various turbine components.
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申请公布号 |
US2004151577(A1) |
申请公布日期 |
2004.08.05 |
申请号 |
US20030357522 |
申请日期 |
2003.02.03 |
申请人 |
PIERCE KIRK;LEMIEUX DAVID LAWRENCE |
发明人 |
PIERCE KIRK;LEMIEUX DAVID LAWRENCE |
分类号 |
F03D7/02;F03D11/00;(IPC1-7):F03B15/06 |
主分类号 |
F03D7/02 |
代理机构 |
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代理人 |
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地址 |
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