输电线路雷击灾害风险评估

A Study on the Risk Assessment of Lightning Disasters of the Transmission Line

为了综合、全面地对输电线路雷击系统进行风险评价,提出一种基于模糊层次分析法的风险评价模型。针对输电线路雷击灾害,划分出六个一级指标和多个二级指标,采用层次分析法确定各指标之间的权重;依据多层次模糊综合评判法,对输电线路进行风险评价。最后,进行算例分析,验证了该方法的有效性。

Lightning disasters are a main cause of tripping operations of the transmission line.For integrated and comprehensive risk assessment of those disasters,this article puts forward a FAHP-based risk assessment model.Six first-class indexes and many second-class ones are established according to the disasters with the FAHP being applied to determine the weight of each index.The risk assessment is implemented based on the multi-level fuzzy comprehensive evaluation method.Finally,its effectiveness is verified by means of computational example analysis.