基于Simulink的配网限压系统雷电冲击响应模型研究  

Research on Lightning Impulse Response Model of Distribution Network Voltage Limiting System Based on Simulink

作　　者：赵邈 万代 陈伟 ZHAO Miao;WAN Dai;CHEN Wei(Hunan Xiangdian Test&Research Institute Co.,Ltd.,Changsha 410006,Hunan,China;State Grid Hunan Electric Power Co.,Ltd.Electric Power Research Institute,Changsha 410006,Hunan,China)

机构地区：[1]湖南省湘电试验研究院有限公司,湖南长沙410006 [2]国网湖南省电力有限公司电力科学研究院,湖南长沙410006

出　　处：《光源与照明》2025年第3期212-215,共4页Lamps & Lighting

基　　金：湖南省湘电试验研究院有限公司科技项目(XDKY-2023-05)资助。

摘　　要：当雷击线路时,雷电流会经由避雷器向大地泄放。在此过程中,限制雷电流流经接地系统的幅值,是防止接地线上端电压过高以及变压器端部电压分布不均的关键举措。为此,文章进行了基于Simulink的配网限压系统雷电冲击响应模型建模,并进行了限压系统对雷电波抑制作用的仿真分析。结果表明:随着限压系统电阻值的增大,避雷器支路上的电流峰值逐渐减小,避雷器支路上的电流峰值出现时间也逐渐减小,但降低幅度不明显。获得的结果可为避雷器限压系统的设计提供参考,从而为配电网线路设计提供有力的技术支持。When lightning strikes the line,the lightning current will be discharged to the ground through the lightning arrester.In this process,limiting the amplitude of the lightning current through the grounding system is a key measure to prevent the high voltage on the grounding line and the uneven voltage distribution at the end of the transformer.In this regard,this paper builds the lightning impulse response model of distribution network voltage limiting system based on Simulink,and carries out the simulation analysis of the lightning wave suppression effect of the voltage limiting system.The results show that with the increase of the resistance value of the voltage limiting system, the peak current on the lightning arrester branch decreases gradually, and the occurrence time of the peak current on the lightning arrester branch also decreases gradually, but the decrease is not obvious. The results obtained can provide reference for the design of lightning arrester voltage limiting system, so as to provide strong technical support for the design of distribution network lines.

关 键 词：配网限压系统 避雷器 等效电路 限压器 电阻 

分 类 号：TM727[电气工程—电力系统及自动化] TU895[建筑科学]