Data identification from nonstandard and nonintegrity substation SVG diagram
XV Guanhua1, ZHANG Jianmin1, LIU Ying2, ZHU Junmin3 , LI Peng3

（1.College of Electronic Information, Hangzhou Dianzi University, Hangzhou 310018, China;
2.Jiaojiang Power Supply Bureau, Jiaojiang 317700, China;
3.College of Electrical and Electronics, North China Electric Power University, Baoding 071003, China）
Abstract: As scalable vector graphics（SVG） format diagram being selected as an unify diagram format for power system, SVG based substation diagrams have been widely used in substation control and monitoring system. Due to their nonstandard and nonintegrity design, such diagrams are limited to open for further integration application. In order to solve above problems, near hundred existed substation SVG diagrams of a regional power grid have been taken as case study to identify the standard data. Under the careful property study of such existed diagram, identification algorithms were worked to identify the parameters of elements, topology connection, bay, connection type of bus bars, etc., from which the complete data were  achieved, which provides the conditions for standard and integrity substation SVG diagram automatic generation in next step, Therefore an unified data model, unified data format and set, unified diagram standard based SVG formatted diagram refurbishment solution for substation is achieved by the reseach results subsequently.
Key words: scalable vector graphics（SVG）; identification data from diagram; diagram standardization