CAJ | 학술논문

配电网结构复杂,分支多,故障点定位困难。传统基于输电线路单端或双端信息的故障定位算法难以满足配电网高精度故障定位要求。提出了基于多端时间信息的配电网故障行波定位新算法,构建了配电网关联矩阵和距离矩阵,给出了故障分支的判别方法;基于二叉树模型,根据配电网末端的行波到达精确时间信息和配电网拓扑结构矩阵,剔除无效行波波头时间,综合利用有效的行波波头时间信息,实现配电网故障的实时精确定位。EMTP仿真结果表明,该方法能实现配电网故障的准确定位。
배전망결구복잡,분지다,고장점정위곤난。전통기우수전선로단단혹쌍단신식적고장정위산법난이만족배전망고정도고장정위요구。제출료기우다단시간신식적배전망고장행파정위신산법,구건료배전망관련구진화거리구진,급출료고장분지적판별방법;기우이차수모형,근거배전망말단적행파도체정학시간신식화배전망탁복결구구진,척제무효행파파두시간,종합이용유효적행파파두시간신식,실현배전망고장적실시정학정위。EMTP방진결과표명,해방법능실현배전망고장적준학정위。
In view of the incapability of the traditional traveling wave fault location method for transmission lines of meeting the requirement on high precision location of the distribution network that is complex and profusely branching in structure, a new traveling wave fault location method based on multiple time information is proposed. The incidence matrix and distance matrix are built to judge the selection of fault. Based on the model for the location binary tree, the algorithm only uses time information and the structure of the distribution network to delete the ineffective arrival time of traveling wave and realize accurate fault location. EMTP simulation results show that the method has fairly high fault location precision and can meet the requirements of power network operation.