SVG和Ajax技术在电网分析与辅助决策支持系统中的应用

摘要

The sub-system of power system network analysis and decision support system needs to exchange large amounts of data with the real-time database platform complicatedly and frequently. The location and organization of the data in oracle are complicated and not intuitive enough for users. Well-designed graphical interface can significantly enhance the interoperability of the system, make it easy to use, and bring good user experience. On the basis of research status on power graphics system, the widely-used scalable vector graphics (SVG) in power system is investigated. Based on the script programming of document object model (DOM), well-designed interoperability of the graphics system is implemented. The real-time data refresh dynamically from SCADA associated with electric model graphics information based on asynchronous JavaScript and XML (Ajax), which has achieved good results in the operation of power system network analysis and decision support system.%电网分析与辅助决策系统的各个子系统与实时数据平台之间需要进行复杂而频繁的数据交互.基于oracle的实时数据平台中的数据存储位置和组织形式复杂且不具有直观性.良好的图形界面将大大提高电网分析与辅助决策系统的易用性和用户友好性.在简要介绍电力图形系统研究现状的基础上,探讨了电力系统中广泛应用的可缩放矢量图形(Scalable Vector Graphics,SVG)技术；通过基于文档对象模型(Document Object Model,DOM)的脚本编程实现了SVG图形与用户的良好交互；通过建立Ajax(Asynchronous JavaScript and XML)引擎,实现了电气模型图形信息与实时数据的关联动态刷新.该方案在电网分析与辅助决策支持系统的应用中取得了良好的效果.