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Wind characteristics were measured at one of the sites suitable for wind turbine generation in Japan using an ultrasonic anemometer and cup anemometers. In particular, the ultrasonic anemometer is considered to be more suitable for analysis of turbulence and gust characteristics due to its lack of moving mechanisms. The reliability of the NEDO Field Test Data for turbulence intensity analysis used in the first report of this study was evaluated by this measured data. Gust characteristics in the wind models of IEC 61400-1 (Ed.3) were also analyzed, and compared with the current IEC gust model and new gust criteria obtained by integrating the new turbulence criteria proposed in the first report. As a result, it was found that the most extreme gust event measured in this study would be more severe than the Extreme Operating Gust (EOG) model in the current IEC 61400-1 (Ed.3). It was also found that the amplitude of the EOG model is adjusted by incorporating the new turbulence criteria. The applicability of the new turbulence criteria to other wind models was therefore confirmed to some extent in this research.

journal of environment and engineering

Wind Characteristics and Wind Models for Wind Turbine Design in Japan (1st Report: Analysis of NEDO FT Data on Turbulence Characteristics and New Normal Turbulence Model Incorporating These Results).