▎ 摘　　要

NOVELTY - The method involves covering a graphene photoelectric sensor in a power cable main body to pick up a cable internal discharge signal through a graphene coating. A power cable operation state comprehensive monitoring system is provided with a data collecting unit, a background diagnosis platform and a cloud computing server. A discharging signal is picked up in the graphene photodetector. The discharging signals are transmitted to the data collecting units through a coaxial cable. A data processing module is provided in an inner unit of the data collection unit. The data collection unit sends amplitude of partial discharge signal, phase and arrival time information to the background treatment platform. The background diagnosis platform finishes the diagnosis and location of partial discharge signal to generate related discharge map and sends alarm information to cloud computing server for cloud storage. USE - Method for comprehensive monitoring based on cloud computing power cable operation state. ADVANTAGE - The cloud computing power cable running state comprehensive monitoring method by the background diagnosis platform using cloud computing server establishing according to the fault point locating database, can quickly determine the discharge point, improving the working efficiency. The data collecting unit uses the data processing module to reduce noise for the signal after receiving the discharging signal, filtering, identifying and cloud storage. The cable discharge point is collected, transmitting to the terminal for big data analysis, determining the fault points, and real time monitoring the mutation value of the cable in the operation process.