逐塔接地条件下OPGW地线取能方法研究

发布时间：2018-04-29 16:48

本文选题：架空输电线路 + 在线供电　；参考：《高压电器》2017年11期

【摘要】：地线取能是架空输电线路在线监测装置较为理想的供电方式,为此,文中针对典型架空输电线路逐塔接地的光纤复合架空地线(OPGW)的取能原理和方法进行了研究。基于架空输电线路地线的电磁感应原理,笔者分析了逐塔接地条件下OPGW取能的可行性,提出了取能原理示意图和取能负载接线示意图,并以某单回线路为例,应用EMTP-ATP程序计算了取能负载的电压、电流以及功率,同时对负载阻抗取值、导线换位、杆塔接地电阻以及档距对这些参数的影响进行了分析。计算表明,在合适的相电流条件下,合理选择取能负载取值可以获得较大的取能功率。最后,设计了一个取能装置并在线路上进行了实测,验证了上述分析结论。
[Abstract]:Ground line energy acquisition is an ideal power supply mode for overhead transmission line on-line monitoring device. Therefore, the principle and method of OPGW (optical fiber composite overhead ground wire) which is grounded tower by tower of typical overhead transmission line is studied in this paper. Based on the electromagnetic induction principle of ground wire of overhead transmission line, the feasibility of OPGW energy acquisition under the condition of tower grounding is analyzed, the schematic diagram of energy acquisition principle and the wiring diagram of energy acquisition load are put forward, and a single circuit line is taken as an example. The EMTP-ATP program is used to calculate the voltage, current and power of the load, and the effects of load impedance, wire transposition, tower grounding resistance and distance on these parameters are analyzed. The calculation results show that under the suitable phase current condition, a large energy extraction power can be obtained by reasonably selecting the value of the energy load. Finally, an energy acquisition device is designed and measured on the circuit, which verifies the above conclusions.
【作者单位】：四川省电力科学研究院;邵阳学院多电源地区电网运行与控制湖南省重点实验室;重庆大学输配电装备及系统安全与新技术国家重点实验室;
【基金】：四川电网科技项目(521997135062)~~
【分类号】：TM75

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