1000kV特高压输电线路导线排列方式和换位对地线能耗的影响  

Influences of Conductor Arrangement and Line Transposition Adopted in 1000kV Transmission Project on Power Loss in Ground Wire

作　　者：张勇[1] 郎需军 杨博[1] 

机构地区：[1]山东电力工程咨询院有限公司,山东省济南市250013

出　　处：《电网技术》2011年第4期21-24,共4页Power System Technology

摘　　要：以1 000 kV锡盟—南京特高压输电线路工程为例,采用ATP-EMTP软件建立仿真计算模型,分析了1 000 kV特高压输电线路工程中导线排列方式、线路长度及换位方式对地线能量损耗的影响。通过仿真发现,换位后地线上的感应电流可以减小30%,有效实现节能降损,经济优势显著。通过能量损失及经济性比较,推荐在逆相序排列方式下1 000 kV双回输电线路超过80 km宜进行1次全循环换位。Taking the 1 000 kV power transmission project form Xilingol League located in the Inner Mongolia Autonomous Region to Nanjing for example, the influences of conductor arrangement, line length and line transposition on power loss in ground wire are analyzed by use of the simulation model built by ATP-EMTP. Simulation results show that the post-transposition induced currem in ground wire can be reduced by 30%, thus the energy saving and power loss reduction can be effectively implemented as well as evident economic benefit can be obtained. By means of comparing the power loss and economy under different ways for conductor arrangement and line transposition, it is recommended to implement a complete cycle transposition for 1 000 kV double circuit transmission utilizing the conductor arrangement of reverse phase sequence while its length is longer than 80 kin.

关 键 词：特高压输电线路 导线排列方式 导线换位 地线 能量损耗 

分 类 号：TM75[电气工程—电力系统及自动化]