城市配电网智能分布式馈线自动化系统研究

Research on Intelligent Distributed Feeder Automation System for Urban Distribution Network

当前城市配电网采用的电缆线路,馈线上设置的联络开关较多,一定程度上提高了线路的适应性,降低了线路成本。该种类型的配电网线路较多,在电路发生故障后能提供多条备用线路,在较短时间内恢复供电,但增加了寻找最优路径的难度。研究城市配电网智能分布式馈线自动化系统,能够在短时间内自动识别配电网结构,而整个电网中的故障处理由终端STU单元进行。实际处理中,可根据终端设备上传的故障信息,在短时间内准确找到故障位置,进而为故障的迅速排除提供可靠依据。

In the current urban distribution network the main cable lines are cable lines,and there are more contact switches on the feeder lines,which can improve the adaptability of the lines to a certain extent and reduce the cost of the lines. This type of distribution network has a very large number of lines,after the failure of the circuit,it can provide a number of standby lines,and then can restore power in a relatively short time,but it also increases the difficulty of finding the optimal path. The intelligent distributed feeder automation system of urban distribution network can automatically identify the topology of the distribution network in a short time. The fault processing in the whole power grid is carried out by the terminal STU unit. In the actual processing process,the fault location can be found accurately in a short time according to the fault information uploaded by the terminal equipment,which provides a reliable basis for the rapid troubleshooting.