公用事业互连光伏逆变器.过电压穿越测量的试验程序

[中文适用范围]： 本文件提供了评估公用事业互联光伏（PV）系统中逆变器过电压穿越（OVRT）功能性能的测试程序。本文件最适用于光伏逆变器连接到公用事业高压（HV）配电系统的大型系统。然而，适用的程序也可用于低电压（LV）安装，其中不断发展的OVRT要求包括此类安装，例如单相或三相系统。评估的OVRT性能仅对被测逆变器的特定配置和操作模式有效。需要针对逆变器在其他工厂或用户可设置的配置中进行单独评估，因为这些配置可能导致逆变器OVRT响应行为不同。测量程序设计尽可能不依赖于特定地点，以便在一个测试地点测量的OVRT特性在其他地点也有效。本文件用于光伏逆变器的测试，尽管它包含的信息也可能对由多个逆变器在单点连接到公用事业电网的完整光伏发电厂的测试有用。它还为公用事业互联光伏逆变器的数值模拟和模型验证提供了基础。 [外文原描述]： IEC TS 63217:2021 provides a test procedure for evaluating the performance of Over Voltage Ride-Through (OVRT) functions in inverters used in utility-interconnected photovoltaic (PV) systems. This document is most applicable to large systems where PV inverters are connected to utility high voltage (HV) distribution systems. However, the applicable procedures may also be used for low voltage (LV) installations in locations where evolving OVRT requirements include such installations, e.g. single-phase or 3-phase systems. This document is for testing of PV inverters, though it contains information that may also be useful for testing of a complete PV power plant consisting of multiple inverters connected at a single point to the utility grid. It further provides a basis for utility-interconnected PV inverters numerical simulation and model validation.