Simple System Failure Analysis Package Development

Power production and national economic sectors and people's daily lives are closely related, in order to ensure the safety of power system stability, the need for a large number of measurements, analysis and calculations to ensure that real-time accurate information on power system operation status.Based on VC + + programming platform, focusing on fast power flow calculation and the simple failure analysis algorithm, to achieve a fast, simple and lightweight power system fault analysis software package, an example test to verify that the package of practical and effective. In this paper, the constituent components of the power system model studied, resulting in power system mathematical model - the node admittance matrix and the node impedance matrix; Secondly, the use of Newton - Raphson method programming flow calculation, the use of symmetrical component method and factor tables simple calculation method failed; Finally, the 5 node, 22 node system, for example, the validation process the results, and before and after voltage failure analysis. By comparing the results with PSASP software analysis, verification of the results of this calculation is more ideal, the difference in voltage magnitude at, with good results.