电网污区分布图的计算机自动绘制方法研究  

Method of Computer-automated Drawing the Map of Pollution Areas

作　　者：刘诣[1] 罗滇生[1] 姚建刚[1] 蒋正龙 

机构地区：[1]湖南大学电气与信息工程学院 [2]湖南电力试验研究院,长沙410007

出　　处：《高电压技术》2007年第5期143-147,共5页High Voltage Engineering

基　　金：国家经济贸易委员会创新基金([2002]845号)。~~

摘　　要：为解决人工绘制电网污区分布图存在的种种缺陷难以适应当前防污工作需要的问题,研究了使用计算机自动绘制电网污区分布图的方法。基于克里金插值的网格法使用大气质量指数作为积污因素的主要指标绘制等效盐密图,分析了影响污区分布的积污、盐密指标和湿润三大要素,并提出了计算机实现三图合一绘制污区分布图的方法。利用此法能基本准确定位污源对污区的影响,但要准确确定污源影响的范围和程度,需调整盐密监测点的布置并对湿润因素的影响作进一步研究。Due to the various limitations in the artificial map of pollution areas, such as the large work of map drawing, the long period of emending the map, and the lack of accuracy etc, the map can not meet the current demands of anti-contamination flashover work. The paper focuses on the research of computer-automated drawing of distributing map in the polluted areas of electrical meshwork. At first, the manual work procedure of drawing the pollution areas map is introduced, and the causes of limitations in artificial map are pointed out. Then, the equal salt deposit density distributing map is drawn by the grid method of the Kriging regression, and three main factors like contamination, saturated ESDD and wetness in the distribution of polluted areas are analyzed. And the article uses the air quality index to be the index of major contaminated factor, and uses it to draw the isopleth＇s map of equal saturated ESDD. A new method, which synthesizes contamination factor, saturated ESDD and wetness factor, is put forward, and computer-automated drawing the map of pollution areas is realized. With the method presented in this paper, the computer can basically ensure the effect of headstream pollution on the polluted areas by rule and line.

关 键 词：污区分布图 计算机自动绘制 地理信息系统 等值线 克里金插值 大气质量指数 饱和盐密 

分 类 号：TM769[电气工程—电力系统及自动化]