The Design And Development Of Visual Platform For Relay Protection Setting And Management System

Along with the rapid development of power system and computer technology, researches on power system visual platform which has friendly man-machine interfaces and good features of portability and expansibility becomes one of the important subjects in area of power system analysis and calculation. Power system visual platform not only can provide a good graphic platform, but also be able to provide a powerful database supports for those analysis program. Combining with COM component and powerful Matlab engineering calculation software may enhance efficiency greatly.According to present situation of power system setting management and requirements of power system to relay protection level, this paper design and develop a visual platform for relay protection setting management system. This platform can draw system wiring diagram and input equipments data parameters conveniently, and it also can do power system operation work of the drawn system, including power system fault analysis, relay protection setting calculation, local system merging into power system feasibility analysis, protection motion information management, protection configuration management, data and setting table management. It aims at to reduce workload of relay protection operators, make analysis data more accurate and improve the operation safe reliability of the electric wire netting to a certain extent.Firstly this paper designs the overall structure of power system visual platform, use the 3-tier construction to marks of the function modules, and then design the concrete functions of each module.Secondly, it uses the Object-Oriented Programming technology and state design pattern to implement the diagram edit function. Diagram data stores into some binary files, and equipments information and parameters store into Access2007 database. Database development bases on CIM standard, which provides convenient condition to platform upgrade. Topological data is acquired using intelligent link line technique, which coincides with the description of CIM net topological model. Calculation module use COM component packing Matlab analysis calculation program to implement fast calculation.This paper integrally designs the structure of relay protection setting management system visual platform, and develop most of the functions. There also exists some details need to improve and perfect of this platform. Because of the implementation method strictly abides by the principle of 3-tier construction, the degree of coupling among the module is very low, which builds a massy foundation for platform upgrade and development.