| 发明名称 | Apparatus for estimating a resonant frequency of a wind turbine tower | ||
| 摘要 | The invention regards an apparatus for estimating a resonant frequency of a wind turbine tower, comprising a measuring module adapted for measuring acceleration values of the wind turbine tower wherein the acceleration values represent acceleration of the wind turbine tower, a filter module adapted for receiving the measured acceleration values, the filter module comprises a variable filter wherein the variable filter is adapted to attenuate frequencies in a band hereby attenuating frequencies for an output of the filter module, an adaptive algorithm module comprising an adaptive algorithm wherein the adaptive algorithm module is adapted for communicating with the filter module and wherein the adaptive algorithm is adapted to minimize the energy of the output of the filter module by adjusting the band of attenuated frequencies, a resonant frequency estimating module adapted for estimating the resonant frequency of a wind turbine tower based on the attenuated frequencies. | ||
| 申请公布号 | US8880357(B2) | 申请公布日期 | 2014.11.04 |
| 申请号 | US201013993228 | 申请日期 | 2010.12.15 |
| 申请人 | kk-electronic A/S | 发明人 | Nielsen Rasmus |
| 分类号 | G01B3/00;G01H13/00;G01N29/12;F03D11/04 | 主分类号 | G01B3/00 |
| 代理机构 | Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C. | 代理人 | Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C. |
| 主权项 | 1. Apparatus for estimating a resonant frequency of a wind turbine tower, comprising a measuring module adapted for measuring acceleration values of the wind turbine tower wherein the acceleration values represent acceleration of the wind turbine tower, a filter module adapted for receiving the measured acceleration values, the filter module comprises a variable filter wherein the variable filter is adapted to attenuate frequencies in a band hereby attenuating frequencies for an output of the filter module, an adaptive algorithm module comprising an adaptive algorithm wherein the adaptive algorithm module is adapted for communicating with the filter module and wherein the adaptive algorithm is adapted to minimise the energy of the output of the filter module during operation of the wind turbine by adjusting the band of attenuated frequencies of the variable filter, a resonant frequency estimating module adapted for estimating the resonant frequency of a wind turbine tower based on the attenuated frequencies. | ||
| 地址 | Ikast DK | ||