Researches And Applications Of Information Integration Faced Smart Distribution Grid

Rising in energy price, increasesing in environmental pollution and frequent fault in power system evoke the Power Research Institutes to do extensive research into the new generation grid. The United States and the European Union as the representative of the western countries present the concept of smart grid. China presents the concept of strong smart grid after digital power, digital grid, with Chinese characteristics of power grid. Smart distribution grid is an important component of smart grid. In recent years, The rapid development of distribution automation lays the foundation for the smart distribution grid. Information integration is the basis for the development of smart distribution grid, which occupies an important position in the research of smart distribution grid.For the smart distribution grid, this paper makes the following work:1) Starting from the research on development goals of smart distribution grid, the layered architecture of the smart distribution grid is proposed. The smart distribution grid is divided into information collection layer, communication transport layer, information integration layer, analysis and optimization layer and information presented layer. Based of this, this paper makes the research of system modules of smart distribution grid and confirms the importance of information integration in smart distribution grid. Finally, the key technologies of the smart distribution grid are introduced from the aspects of information, automation and interaction.2) For the non-uniform of the current distribution model and code, the information modeling and code standard system of the smart distribution grid is proposed. This paper makes the research of modeling methods and modeling examples based on CIM, then uses the method of model-driven to adapt to different models between the various systems. Based of this, the code architecture and the definition of code rules are proposed. Finally, the common model and code management system is introduced, which proves the feasibility of the research. 3) Enterprise service bus as an intermediary to achieve service-oriented architecture, has the advantage of loosely coupled nature, reusability, platform independence etc. On the basis of the analysis of distribution grid information flow, this paper presents the information integration framework based on enterprise service bus and highlights the data service and process management service. Finally, the realization of the information integration platform is introduced, which proves the feasibility of the research.4) Based on information platform, the research of the intelligent applications is carried on. The concept of intelligent dispatching and the design of intelligent alarm and fault diagnosis are introduced.This paper alse makes the research of the applications and design of the virtual reality technology.