模拟电荷法在UHVDC输电线路中的优化及应用  

Optimization and Application of Charge Simulation Method for UHVDC Transmission Lines

作　　者：王珍雪 马力[1] 叶会英[1] 杨明珊[1] 邱志勇[1] 

机构地区：[1]郑州大学信息工程学院,郑州450052

出　　处：《高压电器》2016年第1期15-20,26,共7页High Voltage Apparatus

基　　金：河南省科技攻关项目(142102210497)~~

摘　　要：模拟电荷法是计算特高压直流(UHVDC)输电线路电场最主要的方法之一。文中首次选用导线表面电场强度相对误差作为判断依据,并与传统的电压相对误差方法进行对比,优化分析了模拟电荷法中模拟电荷的位置和个数。分析结果表明模拟电荷均匀分布在子导线半径0.61处的同心圆周上,个数为12时,可以使模拟电荷法最优。同时与自适应模拟电荷法比较,优化后的模拟电荷法计算的电场强度精度较高。因此,文中为模拟电荷法中模拟电荷位置和个数的选取研究,提供了重要的理论依据。The charge simulation method is one of the most important means to calculate and analyze the electric field of UHVDC transmission line. This article takes the relative error of the electric field on wire surface as a criterion to analyze and optimize the location and number of simulation charge, and compared this method with the conventional method in which the relative error of voltage on wire surface is used. The results show that when the simulation charge distributes evenly in the sub-wire concentric circle with a radius of 0.61 times of the sub-wire radius and when the charge number is 12, the proposed charge simulation method becomes optimal. The optimized charge simulation method can get higher accuracy in calculating the electric field, compared with the adaptive charge simulation method.

关 键 词：模拟电荷法 UHVDC 计算精度 优化 

分 类 号：TM75[电气工程—电力系统及自动化]