Research And Application Of Power Distribution Monitoring System Based On Edge Computing

In recent years,with the continuous progress of industrialization,the social production mode has gradually realized informatization and intelligence.At the same time,with the increasing demand for large-scale and efficient production,enterprises put forward stricter requirements for power safety and energy consumption management,and an accurate and efficient power distribution room monitoring system is the key means to achieve power safety and energy conservation.However,most of the widely used online power distribution monitoring systems only detect the basic data and directly upload a large amount of data to the background system for processing,resulting in the calculation and transmission of massive data,which brings great pressure on the data processing and communication channel of the main station.Under this background,this paper studies and develops a power distribution monitoring system based on edge computing.The system is composed of power distribution monitoring terminal,edge node,communication link and cloud platform.Taking power distribution monitoring terminal as the main research object,using edge computing technology,the dynamic and static performance of data processing of the existing power distribution monitoring system is optimized from two main aspects of system architecture and detection algorithm.The main research work of this paper includes:(1)The common power distribution monitoring architecture and technical scheme of the existing power distribution system are investigated and analyzed,and the intelligent demand analysis of the power distribution monitoring system is carried out.On this basis,the overall framework of power distribution monitoring system based on edge calculation is designed.(2)The research and development of power distribution monitoring terminal are carried out.The power distribution monitoring terminal adopts digital hardware technology based on FPGA + DSP to improve the data processing capacity of the terminal equipment.In terms of detection algorithm,aiming at the problem of reactive current phase separation detection in three-phase unbalanced system,an instantaneous reactive current phase separation detection algorithm based on Fourier transform is proposed.In this method,the frequency synchronization correction and control delay compensation are embedded in real time to improve the reactive current detection error caused by the monitored line frequency deviation and signal detection delay.(3)Aiming at the task allocation problem between several edge nodes on the edge side,a balanced task allocation strategy suitable for this working condition environment is proposed.Compared with the traditional nearby task allocation strategy,the data processing efficiency on the edge side is improved by 12.6%.(4)The engineering demonstration application of the system is carried out.Through the field data test and comparing the system delay between the system and cloud computing,the functional characteristics of the system are verified.The test results show that the system has practical engineering application value.