配电网接地故障定位系统的优化设计实现
2016-05-14高海博
高海博



摘 要: 随着配电网规模的逐渐扩大,线路数量与分支逐渐增多,接线方式更加复杂,造成接地故障定位复杂,为了快速准确实现配电网接地故障定位,尽快恢复电网正常运行,设计并实现一种高精度配电网接地故障定位系统,该系统主要由处理模块、无线收发模块、海量存储模块、GPRS模块等构成,分析了所设计配电网接地故障定位系统的运行原理,通过Visual C++中API函数与数据库开发了配电网故障定位系统的三个功能层,给出后台软件控制流程,设计配电网接地故障定位系统软件,给出配电网接地故障定位系统中的部分C语言代码。实验结果表明,所设计配电网接地故障定位系统具有很强的实用性和可靠性。
关键词: 配电网; 接地故障; GPRS; 优化设计
中图分类号: TN710?34; TM77 文献标识码: A 文章编号: 1004?373X(2016)06?0157?04
Optimization design and implementation of earth fault location system for
power distribution network
GAO Haibo
(Northeast Dianli University, Jilin 132012, China)
Abstract: With the gradual expanding of power distribution network scale, the number of power line and branches are increased gradually, and the wire connection mode becomes more complex, which make the earth fault location complex. To quickly locate the earth fault of the power grid and recover the normal operation, a high?precision earth fault location system for power distribution network was designed and realized, which is mainly composed of processing module, wireless transceiving module, mass storage module, GPRS module, etc. The operation principle of this system is analyzed. The three functional layers of this system were developed with database and API function in Visual C++. The software of this system was designed. The backstage software control process and part C language codes of this system are given. The experimental results show that the designed earth fault location system for power distribution network has strong practicability and reliability.
Keywords: power distribution network; GPRS; location; optimization design
0 引 言
近年来,随着配电网规模的逐渐扩大,电缆线路在供电网中的使用量越来越大,很多配电系统都选择消弧线圈并/串联电阻的派生接地形式运行[1?2]。在配电网发生故障的情况下,必须及时定位故障位置,并做出对应的措施[3]。因此,设计一种配电网接地故障定位系统具有重要意义,已经成为相关学者研究的重点课题,受到越来越广泛的关注[4?5]。
目前研究配电网接地故障定位的方法有很多,但均存在一定的弊端。其中,文献[6]设计了一种基于行波法的配电网接地故障定位系统,利用行波传输特性对配电网故障位置进行定位,但该系统存在易受过渡电阻与分支数量干扰的弊端。……
