ECN publication
Levensduurbewaking van windturbines: case studies NedWind 35 en LW18/80
Published by: Publication date:
ECN 1996
ECN report number: Document type:
ECN-C--95-115 ECN publication
Number of pages: Full text:
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The measurements for in the title case studies were carried out in theperiod March 1992 to April 1993 in Warns, Friesland (Netherlands) for a Lagerweij LW 18/80 wind turbine, and in a wind turbine array in Ulketocht, Wieringermeer (Netherlands) for the NedWind 35. The measurements concern the recording of meteorological data, wind turbine capacity, rotational speed, position of the nacelle, and status and failure data, which were taken from the PLC control. Supplementary information comes out of logbooks, energy yield records and noise measurements. With respect to the confidentiality of the data the results of the case studies are laid down in two reports. In this public report attention is paid to the wind turbines and the set-up of the measurements, in particular the principles of the wind turbine control. Four methods for the control of using wind turbines are dealt with. The measured capacity characteristics and efficiency characteristics for four time intervals of the two above-mentioned wind turbines are used as an example. 10 figs., 4 tabs., 2 appendices, 11 refs.

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