基于EMTDC混合编程的高压直流线路保护仿真研究  

Simulation Research on the Line Protection of HVDC Transmission Based on Hybrid Programming Technology of EMTDC

作　　者：杨泽明 任达勇 

机构地区：[1]超高压输电公司天生桥局,贵州兴义562400

出　　处：《南方电网技术》2009年第B11期80-83,共4页Southern Power System Technology

摘　　要：利用EMTDC与C语言混合编程技术,建立所需的PSCAD/EMTDC功能模块,在此基础上建立天广直流线路保护仿真模型,并开发了数据格式转换软件,将COMTRADE格式录波数据转换为PSCAD/EMTDC可读的文件格式。利用所建模型分析天广直流系统"3·21"事故,结果表明,该模型能精确地再现故障时保护内部各元件的动态行为,可用于定值灵敏度分析、确定保护配置及整定原则。Using hybrid programming technology of EMTDC and C language, this paper defines the function blocks ot PSCAD/EMTDC needed for developing a simulation model of transmission line protection of Tian-Guang HVDC project, and develops a format converting software to convert the COMTRADE format file to the one that PSCAD/EMTDC can read. Based on the proposed model the ＂3.21＂ fault occurred in Tian-Guang HVDC project is analyzed, and the results show that the dynamic behavior of the internal components of real protective equipments in the fault can be exactly reconstructed, and it is validated that the model can be adoptd in the sensitivity analysis of setting values, and the decision of protection configuration and setting principle.

关 键 词：高压直流 线路保护 EMTDC仿真 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM743