The Research And Realization Of Power System Fault Simulation And Graphical Modeling

With the constant development of computer technology and power industry, scientific visualization technology has already become an inalienable part in various software which served the power system. Traditional electricity analyze software can only adopt file layout data mostly, lack friendly man-machine interface, can't meet reality's demands gradually already. Describe the network structure of the power system with the figure, revise the component parameter in the database on the figure interface, output functions such as the result of calculation etc., has not merely simplified the operation of the software greatly, can also enable and calculate the analysis result is very clear. This thesis using object-oriented design model Research and achieve a graphical modeling-based power system analysis software, utilizing this platform,have carried on the steady state and trouble emulation to a lot of power system models, have shown the application prospect that should be systematic and comparatively extensive.This thesis has introduced the current situation of the development of the figure software of domestic and international power system briefly at first, having analyzed and summarized, the current application situations in various software of power system of visual technology, have pointed out the present figure system is ubiquitous, the common ability is not strong, use the question such as being complicated, have expounded the meaning of setting up figure modeling platform of power system. Then this thesis has introduced the construction method of the software of electric network analysis based on figure modeling especially, its key content mainly includes: 1. Software structure, function and design pattern : the object-oriented method, the software's functions and structure of the design, which is based on the components of each module to facilitate maintenance, code reuse rate. 2. Tools : . NET technology and its components have many advantages in object-oriented and the graphic development, development of the, and describes the specific application. 3. Drawing Figure : Design and Implementation of the map drawing and rendering various transform function. 4. Database : right components library and database structure design. 5. Algorithm : the graphical modeling platform, programming relevant calculation algorithm, This paper highlights of the algorithm to achieve the difficult-topology algorithm. 6. Checking logic : the creativity of a pair of input data, logic verification methods can greatly reduce the data entry operators and the workload to find out the wrong . Finally, this thesis utilized IEEE standard examples and other typical data In this platform on a number of power system model of the steady-state simulation, and a trend analysis of the exact fault simulation. Upon examination , the software in computational speed, accuracy and convergence in many aspects, can meet the actual demands of industry. In addition to the system can export data in tabular format, users can also develop, GUI counterparts in the position of the output parameters of user needs, it is very beneficial for users to search for data and observation systems operating conditions. The system have broad uses in Power equipment selection, and fault simulation.