IEC 60633:1998/AMD1:2009
(Amendment)Amendment 1 - Terminology for high-voltage direct current (HVDC) transmission
Amendment 1 - Terminology for high-voltage direct current (HVDC) transmission
Amendement 1 - Terminologie pour le transport d'énergie en courant continu à haute tension (CCHT)
General Information
- Status
- Published
- Publication Date
- 25-May-2009
- Drafting Committee
- MT 13 - TC 22/SC 22F/MT 13
- Current Stage
- DELPUB - Deleted Publication
- Start Date
- 25-Apr-2019
- Completion Date
- 26-Oct-2025
Relations
- Effective Date
- 05-Sep-2023
- Effective Date
- 05-Sep-2023
Overview
IEC 60633:1998/AMD1:2009 is an important international amendment that updates the terminology used in High-Voltage Direct Current (HVDC) transmission systems. Issued by the International Electrotechnical Commission (IEC), this amendment provides precise definitions and clarifications on technical terms crucial for designers, engineers, and professionals working with HVDC technology. Standardizing terminology ensures clear communication and consistency across the power electronics industry, particularly in HVDC power transmission and converter station design.
This document specifically focuses on defining terms related to HVDC converter circuits, valve operations, converter configurations, and substation equipment. It also introduces new concepts such as capacitor commutated converters and controlled series capacitor converters, reflecting technological advancements in HVDC systems.
Key Topics
Converter Circuit Terminology
The amendment refines the definition of a bridge (converter connection) to describe the configuration of six converter arms connecting AC and DC terminals.
New terminology includes:- Capacitor Commutated Converter (CCC): A converter with series capacitors placed between the transformer and valves to improve performance.
- Controlled Series Capacitor Converter (CSCC): A converter that inserts series capacitors between the AC filter bus and AC network to manage power flow and stability.
Converter Unit and Valve Definitions
Changes in terminology standardize references to a "converter unit," now simply called a converter (unit).
The amendment clarifies directional terms for valve conduction, including:- Forward/conducting direction: The direction a valve can conduct load current.
- Reverse/non-conducting direction: The opposite of the forward direction.
It also updates trigger angle terms, emphasizing their critical role in valve firing and control.
HVDC Systems and Substations
The term HVDC substation is replaced with HVDC converter station, clarifying the site’s operational role.
Definitions related to AC filters specify their function in reducing harmonic voltages and currents on the AC side of converters, helping maintain power quality.Illustrations of Converter Configurations
New figures (Figure 13a and 13b) illustrate the layouts of CCC and CSCC converter systems, providing visual clarity for these configurations and their key components like filters, transformers, capacitors, and reactors.
Applications
- HVDC Transmission Design
Standardized terminology assists engineers in designing HVDC transmission links that are critical for efficient long-distance power transfer. - Converter Station Operation and Maintenance
Clear definitions improve communication and ensure correct operation, troubleshooting, and maintenance of converter stations. - HVDC Equipment Development
Manufacturers use these terms to specify equipment features, ensuring global interoperability and compliance with international standards. - Power System Stability and Control
The concepts of capacitor commutated and controlled series capacitor converters help improve grid stability, reduce harmonics, and optimize reactive power compensation.
Related Standards
- IEC 60071 – Insulation Coordination for High Voltage Equipment
- IEC 61724 – Photovoltaic System Performance Monitoring (relevant for grid integration)
- IEC 61800 – Adjustable Speed Electrical Power Drive Systems (power electronics context)
- IEC 61936 – Power Installations Exceeding 1 kV AC (HVDC installations interface)
- IEC technical committee 22 – Power Electronics Systems and Equipment, responsible for HVDC related standards
By adhering to IEC 60633:1998/AMD1:2009 terminology, electrical engineers, system integrators, and manufacturers benefit from harmonized language and concepts essential for the advancement and safety of high-voltage direct current transmission technology worldwide. This amendment ensures ongoing clarity and facilitates innovation in power electronics for large-scale energy transmission networks.
Frequently Asked Questions
IEC 60633:1998/AMD1:2009 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Amendment 1 - Terminology for high-voltage direct current (HVDC) transmission". This standard covers: Amendment 1 - Terminology for high-voltage direct current (HVDC) transmission
Amendment 1 - Terminology for high-voltage direct current (HVDC) transmission
IEC 60633:1998/AMD1:2009 is classified under the following ICS (International Classification for Standards) categories: 29.200 - Rectifiers. Convertors. Stabilized power supply. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 60633:1998/AMD1:2009 has the following relationships with other standards: It is inter standard links to IEC 60633:1998, IEC 60633:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
IEC 60633:1998/AMD1:2009 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
IEC 60633 ®
Edition 2.0 2009-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Terminology for high-voltage direct current (HVDC) transmission
Terminologie pour le transport d'énergie en courant continu à haute tension
(CCHT)
IEC 60633:1998/A1:2009
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IEC 60633 ®
Edition 2.0 2009-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Terminology for high-voltage direct current (HVDC) transmission
Terminologie pour le transport d'énergie en courant continu à haute tension
(CCHT)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
E
CODE PRIX
ICS 29.200 ISBN 978-2-88910-239-6
– 2 – 60633 Amend. 1 © IEC:2009
FOREWORD
This amendment has been prepared by subcommittee 22F: Power electronics for electrical
transmission and distribution systems, of IEC technical committee 22: Power electronic
systems and equipment.
The text of this amendment is based on the following documents:
CDV Report on voting
22F/153/CDV 22F/163/RVC
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
5 General terms related to converter circuits
5.3
bridge (converter connection)
Replace the definition by the following:
double-way connection as illustrated on Figure 2, comprising six converter arms such that the
centre terminals are the phase terminals of the a.c. circuit, and that the outer terminals of like
polarity are connected together and are the d.c. terminals
Add the following new definitions to the end of Clause 5:
5.11
capacitor commutated converter
converter in which series capacitors are included between the converter transformer and the
valves (see Figure 13a)
5.12
controlled series capacitor converter
converter in which series capacitors are inserted between the a.c. filter bus and the a.c.
network (see Figu
...
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