CAJ | 학술논문

我国中低压配电网多为树形结构,分支多,进行精确的故障定位困难.针对配电网的树形结构,提出了一种多端行波故障定位方法.该方法中,每个配电变压器安装一个行波接收装置,利用 GPS 获取行波第一波头到达各配电变压器的时间信息,将这些时间信息传输到故障管理中心,选取时间最短的三个变压器首先确定故障区域,然后排除伪故障点进而确定故障位置.最后,采用 ATP 软件对该方法进行了仿真分析,分析结果表明了该方法的可行性.
아국중저압배전망다위수형결구,분지다,진행정학적고장정위곤난.침대배전망적수형결구,제출료일충다단행파고장정위방법.해방법중,매개배전변압기안장일개행파접수장치,이용 GPS 획취행파제일파두도체각배전변압기적시간신식,장저사시간신식전수도고장관리중심,선취시간최단적삼개변압기수선학정고장구역,연후배제위고장점진이학정고장위치.최후,채용 ATP 연건대해방법진행료방진분석,분석결과표명료해방법적가행성.
Most of the medium-low voltage distribution networks are of tree structure with many branches, so it is very difficult to locate faults accurately. The method based on multi-terminal traveling wave is proposed. In the method, every transformer is equipped with the device which can identify traveling wave. When fault occurs, the message of time that the first head of traveling wave arrives at every transformation is sent to the management center of fault. In the management center, the three shortest moments are chosen to identify the area of fault, and then wrong fault location is excluded. Finally, the method is simulated by ATP software, which demonstrates its feasibility.