• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2020, Vol. 41 ›› Issue (6): 114-122.doi: 10.12204/j.issn.1000-7229.2020.06.015

• 能源互联网 • 上一篇    

新一代±800 kV/8 GW特高压直流工程换流阀晶闸管设计优化

杨勇1,佘振球2,宋胜利3,李明1,王加龙1,樊纪超1   

  1. 1.国网经济技术研究院有限公司,北京市 102209;2.国网直流技术中心,北京市 100032;3.国家电网有限公司,北京市 100031
  • 出版日期:2020-06-01
  • 作者简介:杨勇(1984),男,硕士,高级工程师,通信作者,主要研究方向为特高压/柔性直流输电工程设计及应用; 佘振球(1964),男,高级工程师,主要研究方向为特高压直流输电工程技术应用及运行维护; 宋胜利(1975),男,硕士,高级工程师,主要研究方向为特高压直流输电工程技术及应用; 李明(1979),男,博士,高级工程师,主要研究方向为特高压/柔性直流输电工程设计及应用; 王加龙(1988),男,博士,主要研究方向为特高压/柔性直流输电工程设计及应用; 樊纪超(1977),男,博士,高级工程师,主要研究方向为特高压/柔性直流输电工程设计及应用。
  • 基金资助:
    国家电网公司科技项目“±800 kV/8 GW特高压直流输电工程标准化和技术提升研究”(5200-202056138A-0-0-00)

Design Optimization of Converter Valve Thyristor for New Generation of ±800 kV/8 GW UHVDC Project

YANG Yong1, SHE Zhenqiu2, SONG Shengli3, LI Ming1,WANG Jialong1,FAN Jichao1   

  1. 1. State Grid Economic and Technological Research Institute Co.,Ltd., Beijing 102209, China; 2. DC Technical Center of State Grid Corporation of China, Beijing 100032, China; 3. State Grid Corporation of China,Beijing 100031, China
  • Online:2020-06-01
  • Supported by:
    This work is supported by research program“Study on Standardization and Technology Improvement of ±800 kV/8 GW UHVDC Transmission Project”of State Grid Corporation of China(No. 5200-202056138A-0-0-00) .

摘要: 新一代标准化±800 kV/8 GW特高压直流工程对换流阀晶闸管性能及可靠性提出更高要求。通过分析新一代标准化特高压换流阀设备的性能提升需求,明确了晶闸管产品的性能参数优化目标;在以往工程晶闸管研制的基础上,研究了进一步提升电流性能、降低通态压降、提高动态参数一致性及安全裕度的优化设计与工艺改进方法,完成了2种国产技术路线的新一代标准化±800 kV/8 GW特高压直流工程用8.5 kV/5 500 A晶闸管产品设计,并通过专项试验对比分析不同技术路线晶闸管产品的性能特点。研究及试验结果表明,经优化设计后,2种国产晶闸管产品的通态压降与通流特性均得到提高,动态参数一致性更优,安全裕度进一步提升,2种国产晶闸管产品均能够满足新一代特高压工程要求。

关键词: 特高压直流, 换流阀, 晶闸管, 优化设计, 性能提升, 专项试验

Abstract: The new generation of standardized ±800 kV/8 GW UHVDC transmission projects puts forward the higher requirement on performance and reliability of thyristors used in converter valves. The performance requirements of converter valve equipment are analyzed. Then the optimization objectives of performance parameter of thyristor products are determined. On the basis of the research and development of thyristors in past projects, the optimization design and process improvement methods are studied in order to further improve current performance, reduce on-state voltage drop, improve dynamic parameter consistency and safety margin. For the new generation of standardized ±800 kV/8 GW UHVDC transmission project, two kinds of domestic 8.5 kV/5 500 A thyristors were designed and their performance characteristics were compared by special tests. The research and test results show that after the optimization design, lower on-state voltage drop and better current performance of the two thyristor products are realized, and the dynamic parameter consistency and safety margin is further improved. The two thyristor products can meet the requirements of the new generation  of standardized UHVDC project.

Key words: UHVDC, converter valve, thyristor, optimization design, performance improvement, special test

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