基于无线传感装置的配电网故障定位与自愈系统研究  

Research on Fault Location and Self-healing Method of Power Distribution Network Based on Wireless Sensing Device

作　　者：张学清 梁中会 张莹[2] 丛志鹏 王成福[2] 

机构地区：[1]国网山东省电力公司烟台供电公司,山东烟台264001 [2]电网智能化调度与控制教育部重点实验室(山东大学),山东济南250061

出　　处：《山东电力技术》2017年第7期1-5,共5页Shandong Electric Power

基　　金：国家自然科学基金项目(51177091);国网山东电力公司2016年科技项目(SGSDYT00FCJS1600572)

摘　　要：当前的配电网故障分析中,依然存在接地故障选线不可靠、接地故障无法自动定位与隔离以及难以恢复非故障区段自动供电等问题。据此,提出了一种基于无线传感装置的配电网故障定位与自愈方法。该方法首先基于场感应原理设计了非接触式的无线电压、电流传感装置,该装置具有较高的可靠性、灵活性与经济性;其次提出可适应于含有多T接线路的基于双端行波测距原理的故障选线与定位方法;最后将通信系统、GPS系统、GPRS系统与现有配电网自动化系统进行协调与配合,构成了配电网故障定位与自愈系统。研究分析表明,通过开发配电网故障定位与自愈系统,可有效提高配电网运行的可靠性,具有重要的理论与实际应用价值。There are still many problems in present fault analysis of power distribution network,such as unreliable fault line identification,poor automatic location and isolation for grounded faults and complex power restoration for non-fault section.Hence,a fault location and self-healing method for power distribution network based on wireless sensors is proposed in this paper.The specific content includes three aspects.Firstly,based on the principle of field induction,contactless voltage and current sensing device are designed which offered high flexibility,cost effectiveness and good reliability.Secondly,a fault line identification and location method based on two-end traveling wave fault location algorithm,adaptive to transmission network containing multiple T-connections is proposed.Thirdly,by combining the coordinate communication system,GPS system,GPRS system and existing distribution system,an automatic system for fault location and self-healing for power distribution network is realized.The research and analysis show that the reliability of the distribution system operation can be improved through the fault location and self-healing system for power distribution network,which has important theoretical and practical value.

关 键 词：配电网 故障定位 自愈 行波法 故障选线 

分 类 号：TM727.2[电气工程—电力系统及自动化] TM744