混联输电线路的雷电过电压研究

Simulation Study on Lightning Overvoltage of Hybrid Transmission Line

输电线路是电力系统的重要组成部分,已基本覆盖了城市各个角落。但随着电力建设规模的不断扩大,土地资源逐渐短缺,因此架空线路和电缆混合输电的混联输电系统受到了广泛关注。由于混联输电系统一般被应用于超长距离输电线路,被雷击的概率较大,因此研究雷电过电压对混联输电线路的影响具有重要意义。

Transmission line is an important part of power system transportation, which has basically covered all corners of the city.However, with the continuous expansion of power construction scale and the gradual shortage of land resources, the hybrid transmission system of overhead line and cable hybrid transmission has attracted extensive attention.Because the hybrid transmission system is generally used in ultra long distance transmission lines, the probability of lightning stroke is large, so it is of great significance to study the impact of Lightning Overvoltage on hybrid transmission lines.