IEC TR 62001-4:20 21作为IEC TR 62001-4:20 21 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC TR 62001:2021是一份技术报告，为高压直流(HVDC)系统及其组件的交流侧滤波器的基本数据提供了指导，例如额定值、功率损耗、设计问题和特殊应用、保护、抗震要求、设备设计和测试参数。 本文档涵盖了谐波失真和可听频率干扰方面感兴趣频率范围的交流侧滤波。它不包括设计用于电力线载波（PLC）和无线电干扰频谱的滤波器。它涉及传统的交流滤波技术和LCC（line-但这大部分适用于VSC(电压源转换器)HVDC的任何滤波设备。与上一版相比，此版本包含以下重大技术变更: -对文件进行一般性更新，以反映实践中的变化； -删除附件A，因为其内容由IEC 61803涵盖。

IEC TR 62001-4:2021 is available as IEC TR 62001-4:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC TR 62001:2021, which is a Technical Report, provides guidance on the basic data of AC side filters for high-voltage direct current (HVDC) systems and their components such as ratings, power losses, design issues and special applications, protection, seismic requirements, equipment design and test parameters.
This document covers AC side filtering for the frequency range of interest in terms of harmonic distortion and audible frequency disturbances. It excludes filters designed to be effective in the power line carrier (PLC) and radio interference spectra. It concerns the conventional AC filter technology and LCC (line-commutated converter) HVDC but much of this applies to any filter equipment for VSC (voltage sourced converter) HVDC. This edition includes the following significant technical change with respect to the previous edition:
- general updating of the document to reflect changes in practice;
- Annex A deleted as its content is covered by IEC 61803.