参考IEC 61400-12-3,基于实际案例探索影响风速标定关系的因素,分别研究风速、风切变、入流角、湍流等敏感因子对风速标定结果的影响。通过标定及质量评估发现案例中入流角对风速标定的影响程度比风切变更高;敏感因子与风速比的相关性会影响标定质量,当舍弃相关性低的数据仓后,标定质量得到一定程度的提高。下叶尖高度处气流受地表起伏影响比轮毂高度处更大,导致下叶尖风速标定质量较差,无法达到标准IEC 61400-12-3的要求。
Abstract
Referring to IEC 61400-12-3, this study explores the factors affecting wind speed calibration relationships based on practical cases. The impacts of sensitive factors—including wind speed, wind shear, inflow angle, and turbulence—on wind speed calibration results are investigated respectively. Through calibration and quality assessment, it is found that the inflow angle exerts a greater influence on wind speed calibration than wind shear in the cases studied. The correlation between sensitive factors and the wind speed ratio affects calibration quality; when data bins with low correlation are excluded, the calibration quality improves to a certain extent. At the lower blade tip height, the airflow is more significantly affected by surface topography than at the hub height, resulting in poorer wind speed calibration quality at the lower blade tip that fails to meet the requirements of IEC 61400-12-3.
关键词
风力发电机组 /
测试 /
敏感性 /
复杂地形 /
场地标定 /
质量检查
Key words
wind turbines /
testing /
sensitivity /
complex terrain /
site calibration /
quality cheek
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