±1 100 kV特高压直流换流站直流场设计选型

Selection of ±1 100 kV UHVDC Converter Station DC Field

摘要: ±1 100 kV特高压直流输电工程是迄今为止世界上电压等级最高的直流输电工程。合理的直流场设计型式选择对于降低设备制造难度和成本、提升换流站运行可靠性具有重要的意义。基于准东-皖南±1 100 kV特高压直流输电工程，文章从设备外绝缘要求、制造水平以及不同型式的技术经济比较进行分析，得出了推荐1 100 kV特高压直流换流站直流场采用户内直流场设计的结论。

Abstract: The ±1 100 kV UHVDC transmission projects are the highest voltage class DC transmission projects in the world. Reasonable selection of DC field design type has great significance to enhance reliability of converter station and reduce the difficulty and cost of equipment manufacturing. Based on the Zhundong-Wannan ±1 100 kV UHVDC transmission project, requirement of equipment external insulation, manufacture level of equipment, technical and economic comparison of different type of DC field layout were discussed. The indoor DC field layout is recommended for ±1 100 kV UHVDC transmission projects.