基于IEC 61400-12-1:2017的风轮等效风速研究

Research on the rotor equivalent wind speed based on IEC 61400-12-1: 2017

2017版风电机组功率特性测试标准与2005版功率测试标准的一大改变在于风速的定义,前者规定应基于风轮等效风速评估风机的功率特性。分析了新版标准中的风轮等效风速的定义,提出了计算叶尖低处区域面积和叶尖高处区域面积的简化算法,验证了两种风轮等效风速计算方法的有效性和可行性。

A major change between the wind turbine power performance testing standards of version 2017 and version 2005 was the definition of the wind speed. In version 2017, the wind speed used for power performance evaluation was the rotor equivalent wind speed （REWS）. The definition of REWS was studied, and a simplified algorithm of calculating the blade lower-tip section area and the blade upper-tip section area was proposed. The validity and feasibility of two REWS calculations were provided via examples.