摘要
为保证电力系统稳定运行,研究了输电线路反击耐雷性能,提出采用贝杰龙算法等值模型对线路杆塔进行等值,利用VB编程计算求解杆塔的雷电过电压,判断绝缘子串是否发生闪络,评估其耐雷水平。以内蒙古东部地区±500 kV伊穆直流线路为例,对比了VB编程计算结果与EMTP电磁暂态仿真结果,误差在允许值范围内,验证了该方法的准确性。
In order to ensure the stable operation of power system,this paper studies the transmission line back flashover performance,using Bergeron equivalent model to make transmission line tower equal,and solves the tower lightning overvoltage by using VB programming,on the basis of which judges whether the insulator string flashover takes place or not,and evaluates the lightning withstand level. Taking ＋ 500 kV Gimo DC line in the eastern region of Inner Mongolia as an example,it verifies the accuracy of the model and the allowed error by comparing the VB programming results with the EMTP electromagnetic transient simulation results.
出处
《黑龙江电力》
CAS
2015年第3期228-231,共4页
Heilongjiang Electric Power
关键词
贝杰龙
耐雷性能
直流输电线路
过电压
Bergeron
lightning protection performance
HVDC transmission lines
overvoltage
