Research On The Application Of IEC61850 In Distributed Feeder Automation System

For a long time, there are some shortcomings in the communication protocol of substation system and equipment. Such as meaning of the data is not clear, the lack of correlation between the data, and the device can not be self-descriptive and so on. This has led to equipment of various manufactures can only operate independently, and can’t achieve interoperability. Therefore, the development of substation system is very unfavorable. To solve this problem, IEC61850 standard was proposed. The standard is composed of object oriented modeling technology, distributed hierarchical system,abstract communication service interface and specific communication service mapping technology. The interoperability of electrical equipment and the digital and intelligent substation can be realized by this standard. The timeliness, reliability and security of substation network communication are improved greatly.IEC61850 standard has been recognized as a unified standard for the future smart grid. Since the recent research on the theory and practical application of IEC61850 is also increasingly popular, this paper studies the IEC61850 standard and distributed feeder automation system. The research results of this paper will further promote the development of IEC61850 standards, and have great theoretical and practical value for the future research and practice. Firstly, this paper studies the content and modeling method of IEC61850 standard, and then the architecture and communication control method of the distributed feeder automation system is studied in detail. The topology analysis and fault location algorithm of distributed feeder automation system is designed and realized with the characteristics of the system structure. Secondly, feeder automation terminal equipment is very important equipment in the feeder automation system. The paper analyzes the function of feeder automation terminal. Based on the IEC61850 standard, the paper realizes the model of feeder automation terminal, and realizes the SCL file via IEDModeler. In the end, the paper focuses on the research of the general object oriented substation event. Several security strategies are designed by analyzing the requirements of real-time and reliability. The realization of GOOSE communication is carried out and the correctness of the implementation is verified. Finally, GOOSE is used to update the "distribution network firewall" system of Beijing Wei Han Jie Neng Technology Development Co. Ltd.