基于Matlab的弧光接地过电压仿真研究  

Simulation Research of Arc Grounding Over-Voltage Based on Matlab

作　　者：王希平[1] 

机构地区：[1]河北工程技术高等专科学校电力工程系,河北沧州061001

出　　处：《电气技术》2012年第12期32-35,共4页Electrical Engineering

摘　　要：结合工频熄弧理论,利用Matlab电力系统工具箱(PSB)建立10kV配电网仿真模型,对中性点不接地、经消弧线圈接地和中性点经小电阻接地三种接地方式下的弧光过电压现象进行仿真分析比较,指出了经消弧线圈接地方式是目前比较合理的接地方式,适应智能配电网建设。Combined with the power frequency arc extinction theory, the lOkV distribution network is established by the power system toolbox （PSB） of Matlab software. The phenomenon of arc grounding over-voltage is analyzed based on three grounding types, including isolated neutral system, neutral grounding via arc suppression coil and neutral grounding via low resistance. It pointed out the arc suppression coil grounding method is a reasonable method that adapt to the construction of intelligent distribution network.

关 键 词：智能电网 弧光接地过电压 中性点不接地系统 消弧线圈 

分 类 号：TM862[电气工程—高电压与绝缘技术]