Research And Application On Online Relay Protection Monitoring And Evaluation System Based On Fault Information Management System

With the scale of power grid construction and the increase of the number of relay equipment,the negative effect of the traditional relay protection cycle is gradually appearing.Therefore,the condition based maintenance work has become the direction of the development of the relay maintenance and maintenance work of the power system.However,the application of relay protection state maintenance technology must be based on the comprehensive monitoring of the relay equipment.Therefore,the existing intelligence and information management level of the power grid equipment needs to step on a new step.But at present,the on-line monitoring system of relay protection devices of the two equipment mostly has the disadvantages of less expansion function and insufficient comprehensive evaluation and analysis ability.Although the existing on-line monitoring system(protection and fault information system,recording device and so on)has a large number of information data,but the application degree is low,the existing protection information data can not be automatically filtered and classified and analyzed.It can not be provided to personnel evaluation report,early warning report,special report,action diagnosis.Disconnect reports and other available effective information.Therefore,the establishment of information,intelligent and integrated online detection and evaluation management system is of great significance for the application of relay protection condition maintenance.Based on the existing guarantee system of Foshan power grid,this paper has carried out deep application rese arch on the on-line monitoring and evaluation management system of relay protection.First,this paper expounds the background and significance of the monitoring and evaluation of equipment status according to the development level of state maintenance at home and abroad and the actual situation in Foshan area.Through the analysis of the situation of on-line monitoring of Foshan power grid equipment,this paper leads to the necessity of the application of the relay protection system in Foshan power grid to study the line monitoring and evaluation management system based on the application of the protection system.Through the analysis of the concepts,monitoring contents and monitoring methods of the related theory of relay protection status evaluation,combined with the actual situation of the existing relay protection equipment in Foshan Bureau and the development level of online monitoring,the function requirements and modules demand of Foshan power grid relay protection status evaluation,action behavior diagnosis,professional special patrol and so on are deeply divided.Analysis.Secondly,based on the information resources,equipment resources and network structure of the original insurance system of Foshan power grid,this paper designs the overall framework of the online monitoring and evaluation management system for relay protection,and studies the design principles and functional positioning of the system implementation framework.Through the analysis of the structure,function and the interface of the system,the framework of the system,the functional requirements,the design requirements,the software structure and the network topology of the system are designed.Thirdly,this paper deeply studies the application of relay protection online monitoring and evaluation management system "one main plus two sub".In view of the online monitoring requirements of relay protection at the present stage,the system application is studied in detail from the aspects of system interface design,data configuration,data calculation model,function configuration,process design and so on.Finally,the remote monitoring of relay protection equipment,state evaluation prewarning,professional Trevor and action behavior diagnosis work are realized.A highly intelligent and automatic on-line monitoring and evaluation system for relay protection can be integrated into one.Finally,according to the application of the on-line monitoring and evaluation management system of relay protection in the typical substation of 220 k V power grid in Foshan,the status evaluation and early warning report of 220 k V Yao Xian Xian main transformer protection in 220 k V Yao Gang station is taken as a case,and the data and operation status of the online monitoring and evaluation managemen t system of relay protection should be used before and after.The data prove the superiority of on-line monitoring and evaluation system for relay protection.