输电线路雷电绕击评估方法分析及展望

Analysis and Prospect of Lightning Shielding Assessment Method for Transmission Lines

我国电力行业快速发展,满足了工业化生产和人们生活的用电需求。电力工程的危险性极高,输电线路建设工程的增多同样伴随着雷电绕击事故的发生,降低了输电线路供配电的稳定与安全,对正常的电力输送产生了诸多不利的影响。雷电绕击评估方法具有多样性,而计算模型、雷电观测手段等都会引发评估方法的多样性,最终影响输电线路防雷性能的评估。本文分析了输电线路雷电绕击评估方法,对于提升输电线路运行的安全性等具有一定的参考价值。

China’s power industry has developed rapidly and has met the demand for electricity for industrialization and production.The danger of power engineering is extremely high.The increase of transmission line construction projects is also accompanied by the occurrence of lightning bypass accidents,which reduces the stability and safety of transmission and distribution of transmission lines,and has many adverse effects on normal power transmission.The lightning lightning assessment method is diverse,and the calculation model and lightning observation methods will lead to the diversity of evaluation methods,and ultimately affect the lightning performance evaluation of transmission lines.Based on this,the evaluation method of lightning wrap around transmission lines is analyzed,which has certain reference value for improving the safety of transmission line operation.