±1100kV特高压直流接入系统控制策略优化  

Optimization of Control Strategy for ±1100 kV UHVDC Integrated AC System

作　　者：李新年[1] 雷霄[2] 陈树勇[2] 刘耀[2] 祝洁 王晶芳[2] 庞广恒[2] 杨鹏[2] 林少伯[2] 班连庚[2] 王华伟[2] 

机构地区：[1]北京交通大学电气工程学院,北京市海淀区100044 [2]中国电力科学研究院,北京市海淀区100192 [3]西藏电力有限公司,西藏自治区拉萨市850000

出　　处：《电网技术》2016年第5期1326-1333,共8页Power System Technology

基　　金：国家电网公司科技项目(SGKJ[2012]515)~~

摘　　要：为满足未来更大容量、更远距离的输电需求,有必要进一步研究更高电压等级的直流输电技术,±1100 kV直流是我国正在研究的一个全新输电电压等级,对于提高我国直流输电技术的自主创新能力具有重大意义。基于2020年规划电网,在对原网进行等值的基础上,在电磁暂态程序上建立交直流系统研究模型,研究了送/受端交流系统故障、直流系统故障对交直流系统运行特性的影响,提出±1100 kV直流输电系统控制保护参数及配置的需求和优化措施,研究结果可为±1100 kV直流输电工程提供技术参考。In order to meet requirements of large capacity and long distance power transmission in future,it is necessary to study DC transmission technology in higher voltage level.±1100 kV UHVDC is a new transmission voltage level in China,which has great significance for improving independent innovation capability of China＇s HVDC technology.Based on 2020 power network planning,dynamic equivalent network of original network was built in PSD-BPA program.Research model of AC/DC transmission system in China was built in EMTP.Impacts of AC and DC system fault on operating characteristics of AC/DC system were emphasized,and requirements and optimization measures of ±1100 kV UHVDC control and protection were put forward.Results provide technical reference for ±1100 kV HVDC transmission project in future.

关 键 词：PSCAD/EMTDC ±1100 KV 接入系统 直流控制保护 换相失败 

分 类 号：TM72[电气工程—电力系统及自动化]