高压直流（HVDC）系统.交流滤波器的规范和设计评估指南.第5部分:带电压源变流器（VSC）的HVDC系统的交流侧谐波和适当谐波限值

[中文适用范围]： 本部分国际技术报告提供了关于换流器（VSC）技术在谐波方面及预测的未来发展的最新技术，关于现时和预测的 VSC 架构的谐波特征及其如何表征和建模——作为电压源、电流源或其他形式。它还评估了 VSC 的谐波阻抗及其对来自供电网络中负载或发电单元的现时背景谐波的可能影响，并考虑了 VSC 谐波如何在当前的国际电工委员会（IEC）标准和各国法规下进行评估，并确定了需要改进的领域、可能需要研究的领域或需要咨询的其他机构，例如在考虑间谐波时。本文件可作为该主题的参考资料，其中还将包含供负责修改现有标准以适应 VSC 高压直流系统的人员使用的建议。本文档特意不涵盖与换流器直流侧（包括直流电网）相关的谐波问题，而是由 CIGRE 技术简报 [1] 单独处理。 [外文原描述]： IEC TR 62001:2021(E), which is a Technical Report, provides guidance on the state-of-the art of VSC technology in relation to harmonics and predicted future developments, on the harmonic profile of present and predicted future VSC architectures and how they are characterised and modelled – as voltage sources, current sources, or otherwise. It also assesses the harmonic impedance of VSC and the possible impact on pre-existing background harmonics emanating from loads or generation units in the supply network and considers how VSC harmonics are assessed under current IEC standards and national regulations, and identify areas where improvements could be made, research can be needed, or other bodies consulted, for example when considering interharmonics. This document can be a reference source on the subject, which will also contain recommendations for use by those charged with modifying existing standards to adapt to VSC HVDC systems.