公用事业互连光伏逆变器.欠压穿越测量的试验程序

[中文适用范围]： 本文件提供了评估用于公用事业互联光伏（PV）系统的逆变器中低压穿越（LVRT）和欠压穿越（UVRT）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压（LV）安装，其中不断发展的LVRT/UVRT要求包括此类安装，例如单相或三相系统。 评估的LVRT/UVRT性能仅适用于被测逆变器的特定配置和运行模式。对于其他工厂或用户可设置的配置中的逆变器，需要单独评估，因为这些可能导致逆变器的LVRT/UVRT响应行为不同。 测量程序尽可能设计为非特定于站点，以便在一个测试站点测量的LVRT/UVRT特性在其他站点也被视为有效。 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测试由多个逆变器组成的完整光伏电站有用，这些逆变器在单个点连接到公用事业电网。它还提供了公用事业互联光伏逆变器数值模拟和模型验证的基础。 [外文原描述]： IEC TS 62910:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC TS 62910:2020 provides a test procedure for evaluating the performance of Under Voltage Ride-Through (UVRT) 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 UVRT requirements include such installations, e.g. single-phase or 3-phase systems. The assessed UVRT performance is valid only for the specific configuration and operational mode of the inverter under test. Separate assessment is required for the inverter in other factory or user-settable configurations, as these may cause the inverter UVRT response to behave differently. This second edition cancels and replaces the first edition issued in 2015 and constitutes a technical revision.