反时限零序电流保护仿真平台的研发  

Research on Inverse-Time Zero-Sequence Current Protection Simulation Platform

作　　者：于游 潘昱辰 田景辅 高阳[2] 马强 YU You;PAN Yuchen;TIAN Jingfu;GAO Yang;MA Qiang(State Grid Liaoning Electric Power Co.,Ltd.,Shenyang,Liaoning 110006,China;Shenyang Institute of Engineering,Shenyang,Liaoning 110136,China)

机构地区：[1]国网辽宁省电力有限公司,辽宁沈阳110006 [2]沈阳工程学院,辽宁沈阳110136

出　　处：《东北电力技术》2021年第4期59-62,共4页Northeast Electric Power Technology

摘　　要：在高压输电网中,应用反时限零序电流保护能够有效改善定时限零序电流保护的选择性问题,大幅降低整定计算工作量,但由于缺乏专门的分析和仿真工具,对其研究还不够透彻和全面,限制了其广泛应用。介绍了研发反时限零序电流保护仿真平台,可以调用整定计算软件中的电网模型与参数,计算出不同故障和参数下全网反时限零序电流保护的零序电流和动作时间,并能动态仿真保护动作过程,实现对反时限零序电流保护特性的深入研究。应用算例表明,通过该仿真平台能够准确计算出研究需要的各种数据,发现以往分析中没有发现的问题。In the high-voltage transmission grid,through the application of zero-sequence inverse-time current protection,its selectivity problem can be effectively improved,and the workload of setting calculation can be greatly reduced.However,due to the lack of specialized analysis and simulation tools,the research is not penetrating and comprehensive enough,which limits the wide application of zero-sequence inverse-time current protection.This paper proposed the research on zero-sequence inverse-time current protection simulation platform,which can call the power grid model and parameters in the setting calculation software to calculate the zero-sequence current and the operating time of the zero-sequence inverse-time current protection of the entire grid under different faults and parameters.It also can dynamically simulate the protection operating process and realize in-depth study on the characteristics of zero-sequence inverse-time current protection.Application cases show that the simulation platform can accurately calculate various data needed for research and find problems undiscovered in previous analysis.

关 键 词：继电保护 反时限 零序电流保护 仿真 

分 类 号：TM774[电气工程—电力系统及自动化]