风力机wind turbine风电场wind power station wind farm 风力发电机组wind turbine generator system WTGS 水平轴风力机horizontal axis wind turbine垂直轴风力机vertical axis wind turbine轮毂（风力机）hub (for wind turbine)机舱nacelle支撑结构support structure for wind turbine关机shutdown for wind turbine正常关机normal shutdown for wind turbine紧急关机emergency shutdown for wind turbine空转idling锁定blocking停机parking静止standstill制动器brake停机制动parking brake风轮转速rotor speed控制系统control system保护系统protection system偏航yawing设计和安全参数design situation设计工况design situation载荷状况load case外部条件external conditions设计极限design limits极限状态limit state使用极限状态serviceability limit states极限限制状态ultimate limit state最大极限状态ultimate limit state安全寿命safe life严重故障catastrophic failure潜伏故障latent fault dormant failure风特性风速wind speed风矢量wind velocity旋转采样风矢量rotationally sampled wind velocity 额定风速rated wind speed切入风速cut-in speed切出风速cut-out speed年平均annual average年平均风速annual average wind speed平均风速mean wind speed极端风速extreme wind speed安全风速survival wind speed参考风速reference wind speed风速分布wind speed distribution瑞利分布RayLeigh distribution威布尔分布Weibull distribution风切变wind shear风廓线风切变律wind profile wind shear law风切变指数wind shear exponent对数风切变律logarithmic wind shear law风切变幂律power law for wind shear下风向down wind上风向up wind阵风gust粗糙长度roughness length湍流强度turbulence intensity湍流尺度参数turbulence scale parameter湍流惯性负区inertial sub-range风场wind site测量参数measurement parameters测量位置measurement seat最大风速maximum wind speed风功率密度wind power density风能密度wind energy density日变化diurnal variation年变化annual variation轮毂高度hub height风能wind energy标准大气状态standard atmospheric state风切变影响influence by the wind shear阵风影响gust influence风速频率frequency of wind speed环境environment工作环境operational environment气候climate海洋性气候ocean climate大陆性气候continental climate露天气候open-air climate室内气候indoor climate极端extreme日平均值daily mean极端最高extreme maximum年最高annual maximum年最高日平均温度annual extreme daily mean of temperature 月平均温度mean monthly temperature空气湿度air humidity绝对湿度absolute humidity相对湿度relative humidity降水precipitation雨rain冻雨freezing rain霜淞rime雨淞glaze冰雹hail露dew雾fog盐雾salt fog雷暴thunderstorm雪载snow load标准大气压standard air pressure平均海平面mean sea level海拔altitude辐射通量radiant flux太阳辐射solar radiation直接太阳辐射direct solar radiation天空辐射sky radiation太阳常数solar constant太阳光谱solar spectrum黑体black body白体white body温室效应greenhouse effect环境温度ambient temperature表面温度surface temperature互联interconnection输出功率output power额定功率rated power最大功率maximum power电网连接点network connection point电力汇集系统power collection system 风场电器设备site electrical facilities功率特性power performance静电功率输出net electric power output 功率系数power performance自由流风速free stream wind speed扫掠面积swept area轮毂高度hub height测量功率曲线measurement power curve 外推功率曲线extrapolated power curve 年发电量annual energy production可利用率availability数据组功率特性测试data set for power performance measurement 精度accuracy测量误差uncertainty in measurement分组方法method of bins测量周期measurement period测量扇区measurement sector日变化diurnal variations浆距角pitch angle距离常数distance constant试验场地test site气流畸变flow distortion障碍物obstacles复杂地形带complex terrain风障wind break声压级sound pressure level声级weighted sound pressure level; sound level视在声功率级apparent sound power level指向性directivity音值tonality声的基准面风速acoustic reference wind speed标准风速standardized wind speed基准高度reference height基准粗糙长度reference roughness length基准距离reference distance掠射角grazing angle风轮风轮wind rotor风轮直径rotor diameter风轮扫掠面积rotor swept area风轮仰角tilt angle of rotor shaft风轮偏航角yawing angle of rotor shaft风轮额定转速rated turning speed of rotor风轮最高转速maximum turning speed of rotor风轮尾流rotor wake尾流损失wake losses风轮实度rotor solidity实度损失solidity losses叶片数number of blades叶片blade等截面叶片constant chord blade变截面叶片variable chord blade叶片投影面积projected area of blade叶片长度length of blade叶根root of blade叶尖tip of blade叶尖速度tip speed浆距角pitch angle翼型airfoil前缘leading edge后缘tailing edge几何弦长geometric chord of airfoil平均几何弦长mean geometric of airfoil气动弦线aerodynamic chord of airfoil翼型厚度thickness of airfoil翼型相对厚度relative thickness of airfoil厚度函数thickness function of airfoil中弧线mean line弯度degree of curvature翼型族the family of airfoil弯度函数curvature function of airfoil叶片根梢比ratio of tip-section chord to root-section chord 叶片展弦比aspect ratio叶片安装角setting angle of blade叶片扭角twist of blade叶片几何攻角angle of attack of blade叶片损失blade losses叶尖损失tip losses颤振flutter迎风机构orientation mechanism。