发明名称 |
Method of reducing a structural unbalance in a wind turbine rotor and device for performing the method |
摘要 |
Disclosed is a method of reducing a structural unbalance in a wind turbine rotor with pitch control and a control device for performing the method are provided. The method comprises the steps of: detecting a magnitude of the structural unbalance and its phase in relation the rotor's azimuth (theta) on the basis of a measurement of the rotor's azimuth (theta) and a measurement of the rotor speed or the generator speed (omega), establishing individual pitch angle offsets for each blade of the rotor on the basis of the magnitude and the phase, and adding the individual pitch angle offsets to the respective pitch angles of the blades of the rotor.
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申请公布号 |
US2008247873(A1) |
申请公布日期 |
2008.10.09 |
申请号 |
US20080080459 |
申请日期 |
2008.04.03 |
申请人 |
SIEMENS AKTIENGSELLSCHAFT |
发明人 |
EGEDAL PER |
分类号 |
F03D7/00;F01D7/00;G01M1/16 |
主分类号 |
F03D7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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