Study And Realization Of Dynamic Security Assessment System Graph-data Integration Platform

Dynamic Security Assessment (DSA) is based on analysis of transient stability, voltage stability, small-signal stability, which gives evaluation on multi-contingency and preventive measures or optimization strategies. The Graph-Data integration platform of DSA is aiming for providing friendly Man-Machine interactive platform, supporting all kinds of functions of PDSA system, maintaining PDSA system, showing visual assessment results and analyzing them, it is an important part of PDSA system.The support platform based on Graph-Data integration technology is widely used in many systems, such as power system analysis, EMS/DMS, DTS and so on. The support platform of PS ASP Dynamic Security Assessment system (PDSA) is studied and realized in this paper, which supports not only graph configuration, auto-consistent graph and data, drawing of geographical and single-line substation diagrams, but also online system monitor, offline analysis, visualization etc. This paper summarizes three run-states which include Online-Run state, Online-Study, Offline-Study and main functions on three states are discussed. Further, the main functions on three run-states are studied and realized. The platform of Graph-Data integration supports graph configuration technology, which can maintain consistency of graph and data and show analysis result on Single-line and geographical diagrams rapidly. Data Management can manage online data across-the-board, and online data analysis is based on it. In visualization, Rapid contouring method on OpenGL is given and three dimension surface based on contour background is carried out.The platform of Graph-Data integration in this paper is well used in Electric Power Dispatching Centre of State Grid and Guangdong province.