基于MATLAB的小电流接地系统仿真研究  

Simulation Study on Non-Direct-Ground System Based on MATLAB

作　　者：艾琳[1] 罗龙[2] 

机构地区：[1]华北电力大学电气工程学院,北京102206 [2]杭州供电局,浙江杭州310018

出　　处：《华中电力》2008年第3期16-20,23,共6页Central China Electric Power

摘　　要：分析总结了目前各种主要的小电流接地系统的研究方法,指出数值仿真方法是解析法和实验方法的有效的补充。以MATLAB仿真工具为平台,构建了小电流接地系统。仿真结果与实际一致,直观形象地表明了小电流接地系统的特点、优越性以及故障特征,为各种选线算法的研究工作打下了坚实的基础。算例的结果表明了该方法的有效性和可行性。The methods of researching on no-direct-ground system are summarized and analyzed.That the numerical simulation method is the effective complementarity for analytic method and experiment is pointed cut. A no-direct-ground-system simulation model is built up based on MATLAB. The simulations results are in accordance with the fact. Based on the simulation results, the characteristics of the single-line-to-earth fault is found directlg,which are the base for line selecting algorithm. The simulation case shows the effect efficiencg and the feasibilitg of the proposed method.

关 键 词：小电流接地系统 故障选线 仿真 MATLAB 

分 类 号：TM711[电气工程—电力系统及自动化] TM743