基于保护计算程序的线路序参数计算功能研究

摘要

通过利用Excel、PSCAD/EMTDC及ATP/EMTP 3种程序对一条110 kV双回输电线的序参数进行了计算，并对计算结果准确性进行了详细分析对比，提出了基于保护整定计算程序的线路序参数计算功能。该接口程序以图形化建模为基础，建立相应的数据库，具备数据管理功能，可以作为保护整定计算的重要的计算工具，对提高整定计算的效率和准确性有很重要的作用。%In this paper,by using Excel,PSCAD/EMTDC and ATP/EMTP program,sequence parameters of a 110 kV double circuit transmission lines are calculated and the accuracy of the calculation results are examined in detail. Furthermore, the author of the paper proposes a new line parameter calcula-tion method based on relay calculation program. Based on graphical modeling and with corresponding database established and data management capabilities equipped, the interface program can serve as an important tool for protection setting calculation. Finally,it can play a very important role in imp-roving the efficiency and accuracy of relay calculation work.