LI Jinsong,TONG Xiaoyang,ZHANG Wei,et al.Analysis Method for Difference of Similar SCD Files from the Perspective of Big Data[J].Automation of Electric Power Systems,2021,45(4):164-171.
LI Jinsong,TONG Xiaoyang,ZHANG Wei,et al.Analysis Method for Difference of Similar SCD Files from the Perspective of Big Data[J].Automation of Electric Power Systems,2021,45(4):164-171. DOI: 10.7500/AEPS20200630007.
Analysis Method for Difference of Similar SCD Files from the Perspective of Big Data
To solve the problems of difference comparison and standard conformity for virtual connections inspection in the same or different substation configuration description (SCD) files
a large number of historical SCD files are collected to construct a historical SCD file database. Using the combination of the voltage level matching algorithm and the string similarity matching algorithm based on RKR-GST (running Karp-Rabin greedy string tiling)
the similar SCD files in the same or different substations can be intelligently searched in the historical SCD file database. The virtual connections of two similar SCD files are quickly compared to find the differences
mismatch and misconfiguration. The two similar SCD files are then comprehensively compared
especially the nodes at all levels in the SCD files on both sides. During the process
the tag name and the key attribute value are used to cross-check the nodes on both sides and find the differences in addition
deletion
and non-primary key attributes. In addition
several key points that affect the quality of virtual connections are checked
and the validity and consistency of the virtual terminals referenced in the virtual connections are also checked
to identify the potential problems of non-valid reference and type mismatches of virtual terminals. From the overview to the various details
the comparison results of each difference point are given categorically to help cross-check errors. The actual substation application shows that the proposed method can effectively improve the accuracy and work efficiency of the difference analysis of similar SCD files.
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references
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