The Design Of Substation Online Monitoring System Based On Ethernet

With the rapid development of the power industry, the size of the grid is expanding largerconstantly, its structure has become increasingly complex.As the core of the grid, improvingthe reliability and stability of power supply of the Substation grid is the key to ensurenormal power supply.As many substations are built in remote areas, the duty officer can notbe on duty in these areas for long time. Therefore,to ensure the security of powersupply,detecting the electrical equipment in the substations in these regions, and release thatno people on duty in the substation has become an urgent problem to be solved.With thepopularity of the power system network, communication equipments has build in theseareas,make the substation online monitoring system become possible.This paper focuses on substation monitoring system, reference the development ofsubstation online monitoring system in the domestic and international.Study and explore thepowerful embedded processor with low power consumption, high performance, and low cost,and the open source operating system.Design and realize the substation online monitoringsystem based on Samsung S3C2440and Linux operating systems.Released the function ofthe real-time monitoring of the10KV grid.The system hardware use modular designapproach, using Samsung Electronics S3C2440processor as the core control chip, designedand achieved a peripheral interface circuit and signal acquisition and processing circuit.Thesoftware developing is divided into two levels, the underlying software development is building cross compiling environment of the embedded systems, modify and transplant theBootloader program as well as the Linux kernel transplantation, then write andtransplantation underlying drivers of the peripheral hardware.The design of application layersoftware development is completing the preliminary process of the collected information,and then through the network programming, the detected information is transmitted to thehost computer of the monitoring center via Ethernet.Using the interface displaying softwarein the host computer to display the data from the monitoring server-sidesent,then justifyingwith the information collected frome the substation to verify that werther the system canwork well and reliablity.After researching the subject, founded that the design of substation monitoring systemplatform ahieved the desired result, relaesed the functions of transfering, processing andremote monitoring of the grid information. After checking,the result showed that the systemcan work stable and reliable normally.Finally described the inadequacies of the system design,and put forward the further research.