六相输电线路的不平衡度评估  

The Evaluation of Unbalanced Degree on the Six-phase Transmission Lines

作　　者：刘建华[1] 

机构地区：[1]长沙电力学院电力工程系,湖南长沙410077

出　　处：《长沙电力学院学报（自然科学版）》2003年第2期45-48,共4页JOurnal of Changsha University of electric Power:Natural Science

摘　　要：不平衡度是衡量输电线路性能优劣的一个重要指标.通过对六相输电线路序参数的研究,提出了一种不平衡度的评估方法,并对六相线路、紧凑型三相线路及普通三相线路进行了数值分析与比较.结果表明:六相输电线路具有良好的参数对称性,六相输电线路的采用有利于网络性能的改善.The unbalanced degree is one of the most important indexes to evaluate the performance of the transmission lines. A novel unbalanced degree evaluation method is proposed by studying on the sequence parameter of the sixphase transmission lines. Analyses and comparisons of the unbalanced degrees of the sixphase transmission lines, the compact threephase transmission lines and the normal threephase transmission lines are carried out by this new means. The results show that the sixphase transmission lines have good parameters symmetry,and its application is significant in improving the electric net performance.

关 键 词：六相输电线路 序参数 不平衡度 评估方法 参数对称性 输电性能 电力系统 

分 类 号：TM726[电气工程—电力系统及自动化]