CAJ | 학술논문

为了研究10 kV 配电网感应过电压的影响因素，基于先导放电到雷电回击阶段的电磁场原理，通过研究多种计算感应雷过电压的数学模型，在不考虑温度、湿度、地形等环境因素的影响下，确定最佳计算模型方案，采用 MATLAB 仿真分析感应雷过电压的影响因素，得到各个影响因素与感应雷过电压的关系。结果表明，雷电流幅值越大、线路高度越高、雷击距离越近，过电压幅值越大、波头陡度越大。
위료연구10 kV 배전망감응과전압적영향인소，기우선도방전도뇌전회격계단적전자장원리，통과연구다충계산감응뢰과전압적수학모형，재불고필온도、습도、지형등배경인소적영향하，학정최가계산모형방안，채용 MATLAB 방진분석감응뢰과전압적영향인소，득도각개영향인소여감응뢰과전압적관계。결과표명，뇌전류폭치월대、선로고도월고、뢰격거리월근，과전압폭치월대、파두두도월대。
In order to study influencing factors on lightning induced overvoltage of 10 kV power distribution network,based on electromagnetic field principle in the stage of lead discharge to lightning return,this paper confirms an optimal calcula-tion model by studying several mathematical models for working out lightning induced overvoltage without considering influ-ence of environmental factors such as temperature,humidity and terrain. It analyzes influencing factors on lightning induces overvoltage by using MATLAB simulation software and obtains relationship between various influencing factors and lightning induced overvoltage. The result indicates that the lightning current amplitude is larger,the line height is higher and the lightning strike distance is closer,the overvoltage amplitude and gradient of wave head is larger.