IEC TR 62544:2011+A1:2016+A2:2020给出了高压直流（HVDC）输电中使用的有源滤波器的一般指南。它描述了主要使用有源器件来减少直流谐波的系统。或者交流电。系统。这不包括使用自动重新调谐的组件。报告中描述了可用于有源滤波器的各种类型的电路，以及它们的主要工作特性和典型应用。总体目标是为购买者提供指导，以协助指定有源滤波器作为HVDC转换器的一部分。无源过滤器被明确排除在本报告之外。该合并版本由第一版（2011年）、修正案1（2016年）和修正案2（2020年）组成。因此，除了本出版物之外，没有必要下令进行修订。

IEC TR 62544:2011+A1:2016+A2:2020 gives general guidance on the subject of active filters for use in high-voltage direct current (HVDC) power transmission. It describes systems where active devices are used primarily to achieve a reduction in harmonics in the d.c. or a.c. systems. This excludes the use of automatically retuned components. The various types of circuit that can be used for active filters are described in the report, along with their principal operational characteristics and typical applications. The overall aim is to provide guidance for purchasers to assist with the task of specifying active filters as part of HVDC converters. Passive filters are specifically excluded from this report. This consolidated version consists of the first edition (2011), its amendment 1 (2016) and its amendment 2 (2020). Therefore, no need to order amendments in addition to this publication.