IEC 61400-21-2008 风力涡轮机.第21部分:并网风力涡轮机的功率质量特性的测量和评估

标准号：IEC 61400-21-2008
中文标准名称：风力涡轮机.第21部分:并网风力涡轮机的功率质量特性的测量和评估
英文标准名称：Wind turbines - Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines
标准类型：F11
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：F11
国际标准分类号：17.220.20;27.180
引用标准：IEC 60044-1;IEC 60044-2;IEC 60050-161;IEC 60050-415;IEC 61000-4-7-2002;IEC 61000-4-12;IEC 61400-12-1;IEC 61800-3-2004;IEC 62008
适用范围：This part of IEC 61400 includes:~ definition and specification of the quantities to be determined for characterizing the power quality of a grid connected wind turbine;~ measurement procedures for quantifying the characteristics;~ procedures for assessing compliance with power quality requirements, including estimation of the power quality expected from the wind turbine type when deployed at a specific site, possibly in groups.The measurement procedures are valid for single wind turbines with a three-phase gridconnection. The measurement procedures are valid for any size of wind turbine, though thispart of IEC 61400 only requires wind turbine types intended for PCC (Point of CommonCoupling) at MV or HV to be tested and characterized as specified in this part of IEC 61400.The measured characteristics are valid for the specific configuration and operational mode ofthe assessed wind turbine type only. Other configurations, including altered controlparameters that cause the wind turbine to behave differently with respect to power quality,require separate assessment.The measurement procedures are designed to be as non-site-specific as possible, so thatpower quality characteristics measured at for example a test site can be considered valid alsoat other sites.The procedures for assessing compliance with power quality requirements are valid for windturbines with PCC at MV or HV in power systems with fixed frequency within +1 Hz, andsufficient active and reactive power regulation capabilities. In other cases, the principles forassessing compliance with power quality requirements may still be used as a guidance.This part of IEC 61400 is for testing of wind turbines, though it contains information that mayalso be useful for testing of wind farms.NOTE This part of IEC 61400 uses the following terms for system voltage:- Iow voltage (LV) refers to Un ≤ 1 kV;- medium voltage (MV) refers to 1 kV < Un ≤ 35 kV;- high voltage (HV) refers to Un ＞ 35 kV.