Intelligent Graphics Generation And Exchange Based On CIM

The development of Dispatch Automation System is mainly concentrated in the areas of standardization and openness, IEC61970 CIM and the CIS standards are mainly for public information model and components Interface Specification. but for the entire EMS system, the opening is not just limited to this. If the graphics can be done standardization, third-party systems can be imported, the systems will be truly open.IEC61970 recommended adopting a new generation of XML-based 2D vector graphics standards - scalable vector graphic (SVG) standard as the power system standard graphics format.The actual demand for the exchange of graphics exchange more often than not a "snapshot", but the need for a meta-data exchange, so that the recipient can refresh CIM dynamic measurements and other dynamic information, without the need to connect with the distribution system Goals Graphics should have the same source graphical layout, but each item understanding may be different, depending on the current status of dynamic information, as well as send and receive a description of the rules of different systems, that is, as long as the recipient know that the source of all graphics Object electricity distribution, as well as what position the object on the line, as the object is in the original system, as well as how the expression of those functions he has not important, the recipient needs according to their own software to re-expression (graphics generation).Of course, if the target system can completely automated create the necessary power system graphics according to the CIM object metadata which is transmitted by source system , the source of all power in the graphics object distribution of information will no longer be necessary, which makes power systems Graphics exchangeable greatly increased. Therefore, the SVG format power graphics generation based on CIM is a very meaningful task.This paper discussed automatic generation power graphics based on CIM in power dispatch system based on the study of the IEC61970 standard graphics generated on the basis of requirements, including SVG file structure, SVG / CIM modeling, graphic element creating, network topology analysis, Object orientation of the electricity power graphics layout algorithm. Finally we designed intelligent graphics generation program based on CIMThis paper includes six chapters. Chapter 1 describes the existing problem of the power system graphics software, the application of the standard of IEC61970, the actuality of SVG technology at home and abroad, and it introduces the main principle of this paper and the major work we have done. Chapter 2 describes SVG technology associated with power system graphics in detail. Chapter 3 introduced CIM standard, SVG/CIM modeling technology, the description of power graphic element and discussed SVG exchange technology based on CIM. Chapter 4 analyzed and summarized layout algorithm of power network and transform substation. Chapter 5 described the flow of the design of the graphics generation software which is based on CIM, It included the creation of graphics element, the establishment of memory model and topological analysis. It determines the connection among the graphics element according the topological analysis, and determines the location of power graphics element in accordance with topological analysis and layout algorithm. At last, it generates graphics. Chapter 6 described the work that we have done and the further work we will do.