摘要
在详细分析中性点经消弧线圈接地系统零序测量电流分布的基础上,将消弧线圈补偿电流融入小电流接地选线计算和判断中,提出了一种针对中性点经消弧线圈接地系统的基于单相接地故障综合工频稳态量分析的选线算法.同时利用MATLAB建立了系统模型,并对单相接地的各种情况进行了仿真,通过对仿真结果的分析比较,证明了该算法具有较高的保护裕度.
On the basis of detailed analysis of the zero sequence measurement current distribution of the arc-suppressing coil grounding power system, a detecting one-phase-to-ground fault algorithm based on synthesis steady computa- tions is proposed. The algorithm adds the arc suppressing coil compensation current to the zero sequence current of every feeder. Finally, the simulation of various situations of single-phase ground is finished through establishing MATLAB simulation model. The analysis of simulation results shows that the algorithm has a big margin of protection.
出处
《沈阳工程学院学报（自然科学版）》
2009年第3期240-243,共4页
Journal of Shenyang Institute of Engineering:Natural Science
关键词
消弧线圈
故障选线
补偿电流
MATLAB
arc-suppressing coil
fault line selection
compensation current
MATLAB
