基于ATP仿真模型自动运行的架空输电线路防雷性能评估方法

Lightning Performance Assessment Method for Overhead Transmission Line Based on ATP Model Automatic Generation

[目的]提出了基于ATP仿真模型自动运行的评估方法,以解决通过仿真分析和评估架空输电线路防雷性能时模型编制效率不高,评估过程复杂的问题。[方法]首先给出了该方法的思路及其整体框架和实现步骤。在对ATP仿真模型文件结构进行解析的基础上,通过根据线路原始数据自动编写文件中各数据卡,并将各数据卡进行有效连接实现了ATP仿真模型的自动生成。通过自动运行ATP仿真模型并读取仿真结果文件,实现了仿真结果的自动判断。设计了根据仿真结果自动调整模型参数的方法,最终实现了架空线路防雷性能的自动评估。[结果]通过具体应用实例对所提出的计算方法进行验证,该计算方法求解发生击穿的雷电流幅值为13.7 kA,且发生的是B相击穿,与仿真模型中设置击中B相一致,该结果说明了所提出方法的可行性和有效性。[结论]所提出的方法有效提高了通过仿真方法评估架空输电线路防雷性能的准确性和工作效率,具有实用价值。

[Introduction]An assessment method based on ATP simulation model automatic generation was proposed to solve the problems of low efficiency in model establishment and complex assessment process when analyzing and evaluating the lighting performance of overhead transmission line by simulation.[Method]The working thoughts,general framework and implementation step of the proposed method were presented at first.Based on the resolution of the structure of the ATP simulation model file,the ATP simulation model automatic generation was realized through coding the data cards in model file according to initial data of transmission line,and then connecting all the cards effectively.The simulation results automatic determination was realized through executing the simulation model automatically and then reading the file containing the simulation results.The method of model parameter auto-adjustment according to simulation results was designed,and finally the auto-assessment of lighting protection performance of overhead transmission line was achieved.[Result]The proposed method is verified by a specific application example,the calculated value of lightning current with breakdown is 13.7 kA,and the breakdown occurs in phase B,which is consistent with the setting of hitting phase B in the simulation model,the results show the feasibility and effectiveness of the proposed method.[Conclusion]The proposed method can improve the accuracy and efficiency in assessing the lighting protection performance of transmission line utilizing simulation method,and has practical value.