Design And Implementation Of Relay Protection Data Information System Based On Ethernet 103 Protocol

With the continuous improvement and development of computer network technology and industrial production technology,the application of various automation systems in the power grid continues to be popularized,which has caused a huge change in the automatic operation and management of power systems.At the same time,users’ demand for electric energy is constantly increasing.In the construction of a new generation of smart grids,the requirements for various types of production information are very high.Reliable,effective,timely,and comprehensive information is the data basis for providing auxiliary decision support,control implementation plans and rapid fault isolation.As a mature generation product,the IEC60870 standard is widely used in various automation systems.The IEC60870-5-103 standard is a protocol based on serial communication,which is slightly insufficient in the current network communication environment to transmit data and information.Before it can fully meet the IEC61850 standard,the 103 statute will also be widely used in actual projects.In order to solve the above problems,this article introduces the 103 Statute and analyzes its advantages and disadvantages in practical applications,and combines manufacturers and enterprises’ extensions and regulations on the 103 Statute.On the basis of complying with the 103 Statute of the network,this paper proposes the overall data information system Design schemes and design ideas.Through the OPENT simulation experiment,it is verified whether the real-time data transmission of the same interval and the number of devices in different topologies and the real-time data transmission of the same number of intervals and devices in the same topology can meet the requirements under the conditions of Ethernet communication The real-time requirements of the communication network in China.And through the C++ computer language in accordance with the proposed modular thinking and multi-threading technology to achieve communication and data transmission based on the Ethernet 103 protocol to adapt to the needs of different sites for different data,improve the applicability and scalability of the information system,and apply In the 500 k V FC substation.The relay protection data display system based on 103 statute proposed in this paper adopts modular thinking and C++ computer language,supports top-down structured programming method,and spends modular program structure design,which can greatly shorten the development cycle and improve efficiency.Full system openness and scalability,corresponding functions can be added or reduced according to the actual situation of different sites,and can also be adapted to equipment upgrades,with strong flexibility.