PD IEC TR 63262-2019 PDF

Full title and description

PD IEC TR 63262:2019 — Performance of unified power flow controller (UPFC) in electric power systems. This technical report provides guidance, definitions and recommended performance and testing approaches for UPFC devices and their application within transmission systems, including considerations for control, protection, insulation coordination and system performance.

Abstract

IEC TR 63262:2019 describes the principles, configurations and operational behaviour of the Unified Power Flow Controller (UPFC) and gives design rules, performance requirements for key equipment (including converters and control/protection functions), and guidance on system tests and insulation coordination. It applies both to UPFCs based on modular multi-level converter (MMC) technology and to UPFCs based on three-level converter technology.

General information

• Status: Published (Technical Report / PD adoption available).
• Publication date: September 2019 (IEC publication date: 13 September 2019; PD listings also show 19 September 2019 for some national adoptions).
• Publisher: International Electrotechnical Commission (IEC); available as PD/ national adoptions (e.g., BSI PD IEC TR and DIN/VDE translations).
• ICS / categories: 29.200, 29.240.99 (power system equipment / power electronics for transmission and distribution).
• Edition / version: Edition 1.0 (2019).
• Number of pages: IEC English original: 40 pages; some national/adopted versions and translations show 44–45 pages due to national front matter or translation notes.

Scope

This technical report gives guidance on the performance and application of Unified Power Flow Controllers (UPFC) in electric power systems. It covers terminology and symbols, UPFC principles and configurations, recommended design and operating rules, performance requirements for converters and control/protection, insulation coordination and recommended tests to assess system-level performance and interactions. The guidance is intended to support safe, reliable deployment of UPFC technologies in transmission systems.

Key topics and requirements

• Definitions, symbols and terminology for UPFC and associated elements.
• Functional principles and typical UPFC configurations (including MMC-based and three-level converter implementations).
• Design rules for converters and interface equipment to meet system performance and reliability needs.
• Performance requirements for control systems and protection functions to ensure secure operation and coordination with the grid.
• Insulation coordination and electromagnetic compatibility considerations for UPFC installations.
• Recommended factory and site tests and criteria for assessing UPFC behaviour within power systems.

These topics are aligned with the TR's guidance on selecting and testing UPFC architectures for stable and secure integration in transmission networks.

Typical use and users

Primary users are power system planners and operators, transmission utilities, manufacturers and suppliers of FACTS and UPFC equipment, power-electronics and protection engineers, testing laboratories, and researchers working on grid stability and advanced power-flow control. The report is used when specifying UPFC equipment, preparing electrical and protection studies, or developing test plans and acceptance criteria for UPFC installations.

Related standards

Relevant complementary documents include IEC and national standards covering power electronics and grid equipment, such as standards for high-voltage switchgear and transformers, EMC and insulation coordination, and IEC documents addressing FACTS devices and converter technologies. National adoptions (PDs) and translations (for example BSI PD and DIN/VDE adoptions) provide language-specific editorial copies of this TR for use in procurement and regulatory contexts.

Keywords

UPFC, unified power flow controller, FACTS, power electronics, MMC, three-level converter, transmission system, insulation coordination, control and protection, system testing.

FAQ

Q: What is this standard?

A: It is IEC Technical Report TR 63262:2019 — Performance of unified power flow controller (UPFC) in electric power systems, providing guidance and recommended performance/test practices for UPFC devices.

Q: What does it cover?

A: The TR covers UPFC principles and configurations, terminology and symbols, design rules, performance requirements for converters, control and protection, insulation coordination and system-level tests to verify UPFC behaviour and interactions with the grid.

Q: Who typically uses it?

A: Transmission utilities, power-system planners and operators, UPFC and power-electronics manufacturers, protection and control engineers, testing houses and researchers involved in FACTS technologies and grid stability.

Q: Is it current or superseded?

A: As published in 2019 the document is the current IEC TR edition (Edition 1.0). The IEC entry shows a stability date indicating no planned update before 2027, and national PD/adoptions remain current unless a superseding document is published. Users should check with IEC or their national body for any updates or amendments beyond the TR's stability date.

Q: Is it part of a series?

A: It is a standalone IEC Technical Report addressing UPFC performance and application; it complements other IEC standards and technical reports covering power electronics, FACTS devices and related high-voltage equipment, but it is not formally numbered as part of a multi-part series. National adoptions (PDs) may carry alternate national numbering.

Q: What are the key keywords?

A: UPFC, unified power flow controller, FACTS, power electronics, MMC, converter control, insulation coordination, system testing, transmission system performance.