GB/T 20996.3-2020
Performance of high-voltage direct current (HVDC) systems with line-commutated converters—Part 3: Dynamic conditions (English Version)

Standard No.

GB/T 20996.3-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 20996.3-2020

Replace

GB/Z 20996.3-2007

Scope

This part of GB/T 20996 gives comprehensive guidelines for the dynamic performance of HVDC systems. Dynamic performance in this standard refers to events and phenomena whose characteristic frequencies or time regions cover the range between transient conditions and steady-state conditions. The dynamic performance it involves should belong to the interaction between the high-voltage DC system at both ends and the connected AC system or its components, such as power plants, AC lines and busbars, and reactive power sources, under steady-state or transient conditions. It is assumed that the high-voltage direct current system at both ends is composed of a 12-pulse converter unit composed of three-phase bridge connections (two-way), which has bidirectional power transmission capabilities, and the converter is insulated and coordinated by gapless metal oxide arresters. A thyristor valve acts as a bridge arm. Diode converter valves are not considered in this section. Although there is no special mention for multi-terminal HVDC transmission systems, many of the contents in this section are also applicable to multi-terminal systems. This section only deals with grid-commutated converters, including converters with capacitor-commutated circuit structures. IEC60146 1 1, IEC TR60146 1 2

GB/T 20996.3-2020 Referenced Document

• IEC 60146-1-1 
• IEC 60146-1-3 Semiconductor convertors; general requirements and line commutated convertors; part 1-3: transformers and reactors

GB/T 20996.3-2020 history

• 2020 GB/T 20996.3-2020 Performance of high-voltage direct current (HVDC) systems with line-commutated converters—Part 3: Dynamic conditions
• 2007 GB/Z 20996.3-2007 Performance of high-voltage direct current (HVDC) systems Part 3: Dynamic conditions

GB/T 20996.3-2020 Performance of high-voltage direct current (HVDC) systems with line-commutated converters—Part 3: Dynamic conditions has been changed from GB/Z 20996.3-2007 Performance of high-voltage direct current (HVDC) systems Part 3: Dynamic conditions.

GB/T 20996.3-2020 -All Parts