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. A frequency component is detected resulting from the structural unbalance in the wind turbine rotor on the basis of the rotor speed signal. The multiplying the frequency component signal is multiplied by a complex correction factor. Individual pitch angle offsets are establishing for each blade of the rotor based on the magnitude and the phase and complex correction factor. Individual pitch angle offset are added to the respective pitch angles of the blades of the rotor. |
申请公布号 |
US8714924(B2) |
申请公布日期 |
2014.05.06 |
申请号 |
US201313893641 |
申请日期 |
2013.05.14 |
申请人 |
EGEDAL PER;SIEMENS AKTIENGESELLSCHAFT |
发明人 |
EGEDAL PER |
分类号 |
F03D11/00;F03D7/00 |
主分类号 |
F03D11/00 |
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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