Research On The Secondary System Project And Implementation Of RongCheng110KV Intelligent Substation

The power grid is related to the basic industries and public utilities which is the lifeline of the national economy. The development of modern power grid has usher in a critical period of opportunities and challenges. On one hand, the power grid has to cope with the increasing pressure on resources and environment, achieving a wide range of resource optimization, improving the ability of all day long operation, fit in with the needs of energy restructuring, adapt the to structural reform of electric power system. On the other hand, With the development of technology,such as transmit and distribute electricity, power generation, information technology, digital technology provide the technical support to solve the problems. Therefore, the smart grid become the inevitable course in the development of modern electric power industry.Intelligent substation is the use of advanced, reliable, integrated, low-carbon, environmentally friendly, smart devices, station information intelligent communications network platform, the standardization of information sharing for the basic requirements, auto-complete the information collection, measurement, control, protection, metering andthe basic functions of monitoring, according to the power grid of the need to support real-time automatic control, intelligent regulation, on-line analysis of the decision-making, collaborative interaction and advanced features such as substations. Collected mature characteristics of intelligent devices, by comparison with traditional substation equipment related Intelligent Substation guidelines under the guidance of Rongcheng110kV intelligent substation secondary system implementation of the program:with the DL/T-860communication protocol (IEC61850) of the computer monitoring system, the use of hierarchical distributed network architecture, the station into the station level, bay level and process level.100M Ethernet; station control layer to the spacer layer between the spacer layer to the process level using point-to-point communication using optical fiber communication medium. Network approach, the use of point to point the SMV+GOOS bus way; protection device to direct mining beating. Hierarchical distribution substation, the stations of the network structure and system optimization of the communication, the configuration of the secondary equipment to improve the efficiency of the substation communication, to ensure the protection of operating reliability, selectivity, speed mobility.Intelligent substation is the future direction of development of the substation and the inevitable trend of intelligent substation and substation contrast, on the design features of the intelligent substation of110kV, and the station level, the process layer, the spacer layer to achieve a detailed description ofand then discussed the design of intelligent substation of110kV.