基于PSCAD的同塔双回线接地距离保护仿真研究  

Simulation Research on Grounding Distance Protection of Double-circuit Lines on the Same Tower Based on PSCAD

作　　者：邵昱 拜姝羽 袁超 SHAO Yu;BAI Shuyu;YUAN Chao(State Grid Henan Electric Power Supply Company Zhengzhou Power Supply Company,Zhengzhou Henan 45000)

机构地区：[1]国网河南省电力公司郑州供电公司,河南郑州450000

出　　处：《河南科技》2018年第22期46-49,共4页Henan Science and Technology

摘　　要：对于同塔架设的有电磁耦合的多回线路, 零序电流补偿系数不仅与本线路的正序、 零序阻抗有关, 还与线路间的零序互感以及相邻互感线路的参数和运行方式有关.本文研究同塔架设多回线路之间零序互感对接地距离保护的影响, 对整定零序电流补偿系数、 提高电网的保护动作性能具有重要意义.For the multi-circuit line with electromagnetic coupling set up in the same tower, the zero-sequence current compensation coefficient is not only related to the positive sequence and zero-sequence impedance of the line,but also the zero-sequence mutual inductance between the lines and the parameters and operation modes of the adjacent mutual inductance lines. related. In this paper, the influence of zero-sequence mutual inductance between the multiple towers on the same tower on the grounding distance protection was studied. It was of great significance to adjust the zero-sequence current compensation coefficient and improve the protection performance of the power grid.

关 键 词：同塔互感线路 接地距离保护 零序电流补偿系数 

分 类 号：TM774[电气工程—电力系统及自动化]