IEC TR 62544-2020 PDF

Full title and description

IEC TR 62544:2011 + A1:2016 + A2:2020 — High-voltage direct current (HVDC) systems — Application of active filters. This publication is a technical report providing guidance on the selection and application of active filter systems used to reduce harmonics in HVDC converter stations (both d.c. and a.c. sides), describing filter circuit types, operational characteristics and typical applications to assist purchasers and specifiers.

Abstract

Provides general guidance on active filters for HVDC power transmission. The report describes various active filter circuit topologies, their control and operational behaviour, typical application contexts and procurement/specification considerations. Passive filters and automatically retuned components are explicitly excluded from the scope. The consolidated edition incorporates the original 2011 report with amendments issued in 2016 and 2020.

General information

• Status: Published (consolidated technical report / amendment issued).
• Publication date: Amendment 2 published 5 February 2020; consolidated CSV edition published in 2020 (consolidates 2011 + A1:2016 + A2:2020).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.240.99 — Other equipment related to power transmission and distribution networks.
• Edition / version: Consolidated edition 1.2 (IEC TR 62544:2011+A1:2016+A2:2020); Amendment 2 is published as ED1.0 (Amd.2, 2020).
• Number of pages: Consolidated CSV edition: 93 pages; Amendment 2 (standalone change document): 3 pages.

Scope

This Technical Report gives guidance on the application of active filters in HVDC systems. It covers filter concepts and topologies used to reduce harmonic distortion generated by HVDC converters, operational characteristics, typical installation contexts and specification advice for purchasers. The report excludes passive-only filters and devices that rely on automatic retuning; it focuses on active electronic solutions integrated with HVDC converters and their a.c./d.c. interfaces.

Key topics and requirements

• Descriptions of active filter circuit types and topologies used in HVDC applications (e.g., shunt/series active filters, converter-interfaced solutions).
• Guidance on harmonic reduction objectives for d.c. and a.c. systems and typical performance expectations.
• Operational characteristics, control strategies and interaction with HVDC converters (behaviour under steady-state and dynamic conditions).
• Specification and procurement guidance for purchasers — key parameters to require and test.
• Considerations for protection, reliability, maintenance and integration with converter controls and plant protection systems.
• Explicit exclusions and limits: passive filters and automatically retuned components are outside this report’s scope.
• Cross-references to related electromagnetic compatibility and testing recommendations for power-electronic equipment.

Typical use and users

Used by HVDC project engineers, transmission utilities, converter station designers, procurement/specification teams, consulting engineers and test laboratories. The report helps those specifying filter performance for new converters, integrating active filters with existing HVDC installations, and preparing tender documents or technical purchase specifications.

Related standards

Cross-references and related documents commonly cited with IEC TR 62544 include standards and technical reports on EMC and power-electronic testing (e.g., IEC 61000 series), HVDC-related guides, IEEE 519 (harmonic control guidance), IEC/TR 62543 and various IEC TR 62001 series and IEC 62747. Project- and product-specific test standards for converters and filters should be consulted alongside this TR.

Keywords

HVDC, active filter, harmonics, power electronics, converter station, harmonic mitigation, filter specification, a.c./d.c. interface, EMC, HVDC converters.

FAQ

Q: What is this standard?

A: It is an IEC Technical Report (TR) — IEC TR 62544 — providing guidance on the application of active filters in high-voltage direct current (HVDC) systems; the 2020 item is Amendment 2, and a consolidated edition incorporates the original 2011 TR with amendments from 2016 and 2020.

Q: What does it cover?

A: It covers active filter circuit types, their operational characteristics, how they are applied to reduce harmonics on the d.c. and a.c. sides of HVDC converters, and procurement/specification guidance. Passive filters and automatically retuned components are not covered.

Q: Who typically uses it?

A: Transmission utilities, HVDC converter manufacturers, system integrators, consulting engineers, procurement teams and testing laboratories use the report when specifying, evaluating or integrating active harmonic mitigation solutions for HVDC projects.

Q: Is it current or superseded?

A: The consolidated document (IEC TR 62544:2011+A1:2016+A2:2020) reflects the 2020 amendment and is the active consolidated TR; the amendment itself was published on 5 February 2020. Users should check the IEC catalogue for any later revisions after 2020 when exact currency is required.

Q: Is it part of a series?

A: It is a stand‑alone Technical Report within the IEC TC 22/SC 22F portfolio (power electronics for transmission and distribution). It is commonly used alongside other IEC standards and TRs addressing EMC, converter testing and HVDC equipment (see related standards above).

Q: What are the key keywords?

A: HVDC, active filter, harmonic mitigation, power electronics, converter, EMC, specification, a.c./d.c. interface.