Method for Online Outdoor Electrical Equipment Lightning Warning Based on Grey Relation Analysis
Fang Wei-yang · Electric Power · 2012
An online outdoor electrical equipment lightning warning method is put forward.Based on five thunderstorm parameters,namely average frequency,average current density,average electric charge,average electric energy and average up gradient,grey correlation analysis are applied to analyze the correlation between each parameter and lightning events.The thunderstorm parameter with highest correlation is determined as the warning index.The lightning warning threshold value is calculated by using historical data.Lightning warning and probability calculation of outdoor electrical equipment is performed by comparison between the threshold value and real-time prediction data.The effectiveness and reliability of this method are proved by an example.