Design And Implementation Of Real-time Message Analysis Software For Intelligent Substation Network

With development of power system industry,the wide application of intelligent merging unit and circuit breaker intelligent terminal equipment leads the rapid development of digital substation effectively.Meanwhile,efficient,stable and reliable network communication technology has become an indispensable way of network information sharing in intelligent substation.The most important criterion for evaluating the communication quality of a substation or power grid is its reliability and stability.Therefore,it is of great significance to record and analyze some important messages and data information in digital substation.Based on the design of this software,the grouped data can be recorded in detail and analyzed comprehensively,so that the accident and its causes can be diagnosed quickly and accurately,and the effective data basis for restoring the scene can be provided.As the international standard of substation communication network and system,IEC61850,provides the theoretical support for intelligent substation to realize mutual operation between different devices.SMV message and GOOSE message are two important messages in the smart substation.In fact,time transmission is crucial to the safe operation of the smart substation.The purpose of this paper is to design and implement a real-time analysis software for intelligent network messages that can capture,store and analyze the main message types(SMV and GOOSE)in the process layer of smart substation.The main contents are as follows:Firstly,compared with the traditional substation,this paper makes a brief introduction of the development of intelligent substation based on the analysis of the research status and research results of network message at home and abroad.Secondly,the IEC 61850 industry standard was elaborated,especially the GOOSE,SMV and MMS mapping communication service types.Thirdly,the architecture of the system to be designed is summarized,and the functions are analyzed,including packet capture,storage,analysis,waveform display,visual analysis,abnormal warning,etc.Then,according to the message capture module,message storage module,message retrieval module,message analysis module,data exception module division,the process design of each module is carried out and the implementation method is proposed.Finally,Building test environment.The function of the designed software program is verified and the data result is analyzed by sending data through software simulation package.