基于距离对数反比加权法的电压等位图绘制方法  

A Drawing Method of Voltage Contour Bitmap Based on Logarithmic Distance Inverse Weighing Method

作　　者：邢晶[1] 刘茜[1] 刘文颖[1] 郑伟[2] 梁琛[2] 

机构地区：[1]华北电力大学电气与电子工程学院,北京市102206 [2]甘肃电力科学研究院,甘肃省兰州市730050

出　　处：《电力系统自动化》2013年第7期66-71,共6页Automation of Electric Power Systems

基　　金：国家电网公司科技项目(2010406022)~~

摘　　要：随着电力系统可视化技术的发展,电压等位图已成为观测系统无功分布和电压越限情况的一种有效手段。文中在总结已有典型电压等位图插值算法的优缺点以及大量实际工作的基础上,提出了距离对数反比加权法。该方法不需要克里金插值法中复杂的求解过程,计算过程简单,能够大大节省计算时间,提高计算效率,且显示效果较距离反比法有显著改善。实际应用表明,基于距离对数反比加权法绘制的电压等位图对区域内电压的变化趋势能够做出形象、直观的描述,颜色过渡变化也更加自然。With the development of power system visualization,the voltage contour bitmap has become an effective means of observing the reactive power and the voltage limits of the grid.The advantages and disadvantages of typical interpolation algorithms available for the voltage contour bitmap are generalized.On the basis of a large amount of practical work,the logarithmic distance inverse weighting method is proposed.Simple in calculation,this method does not require the complex solving process as in Kriging interpolation,greatly saving computation time and improving computational efficiency.Moreover,much better display effect is achieved than the distance inverse method.Application in practice shows that the voltage contour bitmap obtained is able to make more vivid and intuitive description of the regional voltage trends with more natural color transition.

关 键 词：电网调度自动化 电压等位图 实时计算 距离对数反比加权 可视化 

分 类 号：TM76[电气工程—电力系统及自动化] TP391.41[自动化与计算机技术—计算机应用技术]