1000kV输电线路中分布电容对分相电流差动保护影响的仿真分析  

Simulation Analysis on the Influence of Distributed Capacitance in Power Grid on Phase Segregated Current Differential Protection in 1000kV Transmission Lines

作　　者：王志勇[1] 

机构地区：[1]北京市电力公司怀柔供电分公司,北京101400

出　　处：《科技情报开发与经济》2012年第21期149-151,共3页Sci-Tech Information Development & Economy

摘　　要：介绍了MATLAB软件中电力系统工具箱的功能和仿真任务,通过MATLAB对1000kV输电线路进行了仿真,分析了特高压线路中分布电容对分相电流差动保护的影响,验证了并联电抗器补偿可以有效地减小特高压线路中的电容电流。ABSTRACT： This paper introduces the functions and simulation tasks of power system toolbox in software MATLAB, makes the simulation of 1 000 kV transmission line through MATLAB, analyzes the influence of distributed capacitance in UHV transmission line on phase segregated current differential protection, and verifies that parallel reactor compensation can effectively reduce the capacitive current in UHV transmission line.

关 键 词：MATLAB 分布电容 分相电流差动保护 仿真分析 

分 类 号：TM712[电气工程—电力系统及自动化]