基于MATLAB小电流接地系统故障选线方法的研究  

Line Selecting Methods of Low Current Neutral System Base on MATLAB

作　　者：王健 吴涛[2] 吴国义[3] 赵玉岩[4] 

机构地区：[1]大庆榆树林油田开发有限责任公司,黑龙江肇东151100 [2]大庆石油学院,黑龙江大庆163318 [3]大庆油田有限责任公司采油九厂,黑龙江大庆163853 [4]齐齐哈尔电力培训中心,黑龙江齐齐哈尔161006

出　　处：《佳木斯大学学报（自然科学版）》2009年第3期365-368,共4页Journal of Jiamusi University：Natural Science Edition

摘　　要：对小电流接地系统常用的选线方法进行对比分析,并应用MATLAB/Simulink建立小电流接地系统的统一模型,通过设置统一的线路参数、仿真参数,对零序电流比幅法、零序功率方向法、五次谐波法、注入信号法四种自动选线方案进行仿真比较,根据仿真结果,分析目前自动选线法存在的主要问题及以后的发展方向.The line selecting methods of non - solid earthed network are analyzed, and the uniform model of non - solid earthed network is established using MATLAB/SIMULINK. The uniform line and simulation parameters are configured, and then the four selecting line schemes of namely zero - sequence current comparison, zero - sequence power direction, fifth harmonics and Injecting Signal Method are compared. The existent question and development are discussed according to the simulation results.

关 键 词：小电流接地系统 单相接地故障 选线 MATLAB 

分 类 号：TM762[电气工程—电力系统及自动化]