高压电器2017，Vol.53Issue(11)：141-145,151,6.DOI:10.13296/j.1001-1609.hva.2017.11.023
逐塔接地条件下OPGW地线取能方法研究
Study on Power Tapping Method from Optical Power Ground Wire (OPGW) Grounded to Each Tower of Transmission Line
摘要
Abstract
Tapping power from the optical power ground wire(OPGW)of a transmission line is an ideal method to power online monitoring device.In this study,the power tapping principle of OPGW grounded to each tower of a typical transmission line is analyzed,and the possibility of power tapping is discussed according to the electromagnetic induction theory of ground wire of overhead transmission line.Consequently,schematic diagrams of the power tapping and the corresponding power-tapping load wiring are drawn.Example of a single-circuit line is taken to calculate power-tapping load's voltage,current and power using the software EMTP-ATP,and the effects of load impedance,line span,conductor transposition,tower footing resistance on the above parameters are analyzed.Calculation result shows that under appropriate phase current,large power can be obtained for reasonable value of power-tapping load.Finally,a power tapping device is designed and measured on a real transmission line,verifying the work in this study.关键词
架空输电线路/在线供电/地线取能/取能设计Key words
overhead transmission line/on-line powering/power tapping from ground wire/power-tapping design引用本文复制引用
范松海,谢彦斌,刘益岑,龚奕宇,蒋兴良,胡建林..逐塔接地条件下OPGW地线取能方法研究[J].高压电器,2017,53(11):141-145,151,6.基金项目
四川电网科技项目(521997135062).Project Supported by Science and Technology Project of Sichuan Power System(521997135062). （521997135062）
