Implementation of Graphical Browsing Service of Geographic Information System Platform in Transmission and Distribution Network

被引：0
|
作者：
Li F. [1 ,2 ]
Huang Q. [1 ]
Ji Y. [2 ]
Wu W. [3 ]
机构：
[1] School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu
[2] Information Center of Guizhou Power Grid Co. Ltd., Guiyang
[3] State Key Laboratory of Control and Simulation of Power System and Generation Equipments, Tsinghua University, Beijing
来源：
Li, Fei (lfee@163.com) | 1600年 / Automation of Electric Power Systems Press卷 / 41期
关键词：
Client; Dynamic graphic rendering; Geographic information system (GIS); Memory object database; Vector graphic transmission;
D O I：
10.7500/AEPS20160920007
中图分类号：
学科分类号：
摘要：
Two main ways of creating a grid geographic information system (GIS) are described, i.e., the instant query method based on structured query language (SQL) database and the static publishing method based on slicing. The performance bottleneck and function limitations of the two ways in grid application are compared. The memory database oriented to device object is designed and developed. By using the partition and the paging storage technologies, the province wide graphic and pattern data on “transmission, substation, distribution and low voltage” are cached in the GIS application server. The spatial index is created, and incrementally updated with the network version iteration for highly efficient caching and indexing of a large-scale power grid model. Then the implementation method of graphics browser subsystem of provincial centralized power grid GIS platform using the technology is described. The GIS application server provides vector graphics WebService, and the B/S client carries out dynamic graphics rendering. Finally, in a pressure test of an actual online system, each server of the system developed processes more than 1 000 times of dynamic graphics browsing services per second in the tens of millions of grid equipment scale, and each service processing time is less than 0.1 s. © 2017 Automation of Electric Power Systems Press.
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页码：99 / 105
页数：6
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