标准摘要
[中文适用范围]： IEC 63409-3:2025 规定了用于光伏（PV）电力系统（含或不含储能）中电力转换设备（PCE）基本运行特性的测试程序。这些基本运行特性是指在未对PCE施加任何内部设置限制之前，其满足特定电网支持功能或应对异常变化的特定行为的能力。本文件涵盖以下项目的测试：a) 稳态特性：描述了确认PCE在稳态条件下的可操作范围的测试程序。根据测试程序，确认视在功率、有功功率、无功功率、功率因数、电网电压和电网频率的可操作范围。b) 暂态响应特性：描述了确认PCE对运行条件变化的响应的测试程序。本文件仅考虑正常（连续）可操作范围内的变化，因此，针对异常变化的行为和电网支持功能不在本文件范围之内，将在本系列的其他部分中进行覆盖。 [外文原描述]： IEC 63409-3:2025 specifies test procedures for confirming the basic operational characteristics of power conversion equipment (PCE) for use in photovoltaic (PV) power systems with or without energy storage. The basic operational characteristics are the capability of the PCE before any limitations due to internal settings are applied to the PCE to meet specific grid support functions or specific behaviours against abnormal changes. This document covers the testing of the following items: a) Steady state characteristics Test procedures to confirm operable range of PCE at steady state condition are described. The operable ranges in apparent power, active power, reactive power, power factor, grid voltage and grid frequency are confirmed according to the test procedures. b) Transient-response characteristics Test procedures to confirm PCE’s response against a change of operational condition are described. This document only considers the changes within normal (continuous) operable ranges. Therefore, the behaviours against abnormal changes and grid support functions are out of the scope and are covered in other parts of this series.
英文名称Photovoltaic power generating systems connection with the grid - Testing of power conversion equipment - Part 3: Basic operations