Low-voltage distribution area topology identification method and system based on clustering analysis and graph theory

• Main Authors: ZHENG CHUYU, ZHAN YANG, LIU WENJUN, LIANG HAIWEI, CHEN ZHONGWEI, CHEN YUANYANG, LENG YANG, CHEN JIAN, HE ZHIQIANG, LIU HAOTIAN, WU YEFAN, QU SHAOQING
• Format: Patent
• Language: Chinese; English
• Published: 04.11.2022
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; GENERATION; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS; SYSTEMS FOR STORING ELECTRIC ENERGY; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a low-voltage distribution area topology identification method based on clustering analysis and a graph theory. The method comprises the following steps: acquiring data information of a target low-voltage distribution area; adopting a clustering algorithm to analyze and obtain the phase to which each user belongs in the transformer area; clustering the users belonging to the same phase again by adopting a clustering algorithm to obtain the information of the electric meter boxes to which the users of each phase belong; calculating the average value of the voltage sequences of all users under each electric meter box as the voltage sequence of the electric meter box; constructing a graph model corresponding to each phase of electric meter box and generating a corresponding minimum spanning tree as the topology of each phase; and fusing the geographic position information of each electric meter box and each phase topology to obtain topological information of the target low-voltage distrib