Design Of On-line Monitoring System For Smart Grid High Voltage Transmission Line Based On Internet Of Things Technology

Generation,transmission,substation,distribution,electricity and energy storage equipment are the main components of traditional power grid,which make it difficult to balance and optimize the state of traditional power grid.Also,the operation of equipment cannot be effectively controlled and the degree of automation is low.Therefore,the traditional physical power grid cannot meet the needs of modern society.With the development of smart grid technology and Internet of things technology,the idea of "intellectualization" is applied in power grid management,which is of great potentiality in realizing intelligent monitoring of power grid.On-line monitoring of high voltage transmission network is one of the important fields in the development of smart grid.Advanced sensor technology is used to monitor the operation and environmental conditions of high voltage transmission network.Based on wireless network technology and optical fiber communication technology,the operation of high voltage transmission network is analyzed combined with computer technology.Based on the characteristics of online monitoring for high-voltage transmission lines,the hardware,network and application platform of online monitoring system are designed in this paper.Data on temperature,humidity,wind speed,wind direction,rainfall,sunshine,tension,dip,vibration,image/video are collected by a variety of different sensors.The online ice-covered warning monitoring of transmission lines,micro-meteorology monitoring,image/video monitoring,tower tilt monitoring and breeze vibration monitoring can be achieved by each sensor alone or in combination.Based on the characteristics of communication network technology,this paper proposes to establish a self-organizing network communication network by optical fiber,Zig Bee and WIFI technology,which is reliable and low cost.According to the principles of program design,the system architecture is layered,and the scalability and stability of the system are improved through object-oriented and modular programming.Based on the requirement analysis of transmission and operation,the requirements of online monitoring for high-voltage transmission lines are meet.Based on smart grid technology and modern Internet of Things technology,a real-time multi-type state parameter monitoring system for transmission lines is established,a real-time monitoring hardware system is designed and a system software platform is builtto realize online monitoring of transmission lines.