Power grid line fault phase selection method and device, electronic equipment and storage medium

• Main Authors: WANG ZIXIN, NIU RONGZE, LI FENGJUN, GUO XIANGFU, GUO SHUYU, XU HENGBO, SUN QIAN, YIN HAORAN, MIAO SHIHONG, HAN JI, LI ZONGFENG, ZHAO JIAN, XIE RUIRUI, ZHANG JIANBIN
• Format: Patent
• Language: Chinese; English
• Published: 01.01.2021
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a power grid line fault phase selection method and device, electronic equipment and a storage medium, and belongs to the field of power grid fault diagnosis, and the method comprises the steps: S1, obtaining a plurality of fault information sequences corresponding to a power grid line during a fault period, wherein the fault information sequence comprises a voltage signal time sequence, a current signal time sequence, an active power time sequence and a reactive power time sequence; S2, obtaining gradient similarity of sampling points in every two fault information sequences, and constructing a gradient similarity matrix corresponding to the plurality of fault information sequences; S3, performing visualization on the gradient similarity matrix to construct a visualization graph corresponding to the plurality of fault information sequences; and S4, inputting the visual graph into a convolutional neural network model so as to carry out fault phase selection on the power grid line during