特高压六相输电线路特性研究  

Study on UHV six-phase transmission lines characteristics

作　　者：赵庆明[1] 贺家李[1] 牟敦庚[2] 李永丽[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072 [2]华北电力设计院,北京100011

出　　处：《中国电力》2007年第8期40-44,共5页Electric Power

摘　　要：六相输电是多相输电的一种,能够有效提高输电线路的功率传输密度。同特高压双回线进行对比分析了特高压六相输电系统在杆塔结构、走廊利用率等方面所具有的优势。另外,还对特高压六相输电系统的导线表面场强、可闻噪声、工频电磁场分布以及不平衡性等方面进行了重点的论述,详细论证了特高压六相输电线路所具有的可行性和优越性。Six-phase transmission belongs to high phase order transmission, and it can improve the power transmission density efficiently. Comparing with transmission lines on the same tower, the advantage of six-phase transmission line on pole structure and using overhead transmission fight of way was discussed in detail. Additionally, the electric field on surface of conductor, the distributions of audible noise and power frequency electric-magnetic field at ground level, and lines current unbalance were discussed. The result demonstrates the feasibility of UHV six-phase transmission.

关 键 词：特高压 六相输电 杆塔结构 可闻噪声 工频电磁场 不平衡性 

分 类 号：TM726.1[电气工程—电力系统及自动化]