| Smart power grid dispatching technical support system(D5000)is an automation system support platform developed by the State Grid Corporation that draws on the achievements domestic and foreign,independently developed to meet the needs of the intelligent dispatching of power dispatching.The platform adopts advanced database management mode and event-based service-oriented message bus design to realize data transmission and interaction between applications,platforms and applications,and satisfy data sharing in a wide area.Covering common service and management functions such as data,message,model,interface and security,it can provide support for the integrated development and maintenance management of all kinds of applications.It is a platform with unified construction standards,open software development,reliable system performance and service oriented application features of the integrated scheduling technical support system.However,the D5000 platform for various types of application development has been developed,all of those are less capable of evaluating grid risk caused by abnormal secondary devices and real-time monitoring and analysis of secondary devices,Failure to comprehensive display of fault information,poor reporting of accident information standardization,secondary equipment query statistics,remote operation and technical support weakness and other issues to be solved.In order to serve the needs of power grid intelligent construction and enhance emergency handling capability of power grid accidents,it is urgent to research and develop a secondary online monitoring and analysis system based on smart grid dispatch support system D5000.This paper analyzes the actual demand of D5000 platform in Tianjin Power Grid and the actual demand of regulation operation,and summarizes the technical requirements of functional design,economy,security and performance of the secondary equipment online monitoring and analysis system.On this basis,relying on D5000 platform to develop a secondary equipment on-line monitoring and analysis system.The system uses an independent front of the network structure design,to achieve direct communication between the main station and the sub-station to ensure the timely data information;Based on the CIM model of D5000 platform,the model of secondary device is established by means of summoning the configuration information of substation directly,which makes the whole system have good scalability.Developed a system of rapid fault diagnosis module to achieve real-time online information on the operation of the secondary network equipment and fault diagnosis,and the formation of a view of the fault analysis report;Aiming at the characteristics of secondary equipment event alarm,a layered alarm service was presented,which is helpful for operators to quickly check equipment operation information and accident status.The system also has set value management,historical data query and other professional applications,as well as efficient system of human-computer interaction interface,greatly enhance the efficiency of regulatory operations.The secondary equipment online monitoring and analysis system based on smart grid dispatching support system researched and developed in this paper has been put into trial operation in Tianjin Electric Power Dispatching Control Center.For the regulation of operational staff,relay protection professionals and other professionals to provide reliable secondary equipment operating conditions,real-time,accurate grid accident data.It provides an important basis for the judgment of fault in power grid fault and the accident analysis after fault. |
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