Research Of Power SCADA System Based On J2EE Platform

The Power SCADA System has played irreplaceable role on Electric Power Dispatch Automation System. In recent years, open and distributional system structure is the tendency of SCADA System, because it can provide high integration, excellent portability and widespread information sharing ability to SCADA. With the fast development of Internet/Intranet technology, the application structure of SCADA system has formed B/S three-tier structure, which based on traditional C/S structure. This new B/S structure can provide good running pattern to realize cross platform and distributional application.First, this paper researches the application of J2EE platform and open source framework which based on J2EE platform in Power SCADA System. J2EE is the mainstream enterprise distributional application program development platform at present; it has the obvious B/S three-tier structure style, and those products which conform to the J2EE specification can bring open and portability to users. So using J2EE platform to design B/S structure application program will strengthen its portability, reusability and information sharing ability.According to the J2EE multi-tier architecture, and integrate open source framework which are Struts and Hibernate, design three-tier architecture of SCADA system. This architecture includes client-tier, middle-tier and database-tier, and each tier's function is clear, so change any tier need not modify other tiers. This architecture is propitious to improve system's maintainability, reusability and extensibility.On the base of theory analysis, this paper analyzes the system work flow, defines the system requirements, and introduces the concrete development technology, modules' core classes and their methods. Finally through realizing user management, graphic display and the report inquiry module to validate this prototype system's feasibility, and exhibits it's more reusability, maintainability and extensibility.