An object-oriented graphical package for power system simulation and analysis

Object-oriented programming is a major trend in computer software because it increases flexibility of large-scale software systems. This paper presents an intuitive windows-based package for the power system analysis. The advantages of the object-oriented approach are demonstrated with an implementation of the graphical part of the package. To achieve usage flexibility the package is designed to have the following features: a graphical editor to visually edit the power system diagram, results processing and exporting and graphic presentations. The application programs in this package include the power flow calculation, the continuation power flow calculation, the available transfer capability calculation, and sensitivity analysis. This package may be useful for educational and training purposes.