高压直流（HVDC）系统 交流滤波器规范和设计评估指南 第3部分：建模方面

[中文适用范围]： IEC TS 62001-3:2026 深入探讨了与 IEC 62001 系列其他部分同样提及的三项尤为关键的设计方面，具体包括：交流网络阻抗建模、性能与额定值计算中对既有谐波的处理，以及换流器之间的谐波相互作用（交叉调制）。本文件主要聚焦于无源交流滤波技术及线路换相高压直流（HVDC）换流器，但其内容在很大程度上同样适用于电压源换流器（VSC）技术。如有区分之处，将在正文中予以说明。本文件的适用范围涵盖在谐波畸变及可听频扰动相关频域范围内的交流侧滤波；但并未包含专门针对电力线载波（PLC）及无线电干扰频谱进行优化的滤波器设计。相较于 IEC TR 62001-3:2016，本版主要技术变更包括：a) 新增术语与定义条款（第 3 条）；b) 新增第 4 条；c) 重新编排第 5、6 和 7 条；d) 更新参考文献目录。 [外文原描述]： IEC TS 62001-3:2026 provides in-depth consideration regarding three particularly important aspects of design, which are also mentioned elsewhere in other parts of the IEC 62001 series, which are: AC network impedance modelling, the treatment of pre‑existing harmonics in performance and rating calculations, and harmonic interaction across converters (cross-modulation). This document concentrates on passive AC filter technology and line-commutated high-voltage direct current (HVDC) converters, but much of the content is equally relevant to VSC converter technology. Where there is a distinction, this is indicated in the text. The scope of this document covers AC side filtering for the frequency range of interest in terms of harmonic distortion and audible frequency disturbances. It excludes filters specifically designed to be effective in the PLC and radio interference spectra. This edition includes the following significant technical changes with respect to IEC TR 62001‑3:2016: a) added Clause 3 on terms and definitions; b) added new Clause 4; c) rearranged Clause 5, Clause 6 and Clause 7; d) updated Bibliography.