Hadi Suyono

Development of Power System Analysis Software Using Object Components

This paper presents experiences of developing a power system analysis software using a combination of object oriented programming (OOP) and component based development (CBD) methodologies. In this development, various power system analyses are developed into software components. These components are integrated with graphical user interface components to build up a power system analysis application. By using both OOP and CBD methodologies, updating or adding new algorithm can be done to any specific component without affecting other components inside the software. The component also can be replaced with any other better component whenever necessary. Hence, the software can be maintained and updated continuously with minimum resources. The performance of the components is described in comparison with the non-component applications in terms of reuse as well as execution time.

Use-case and Sequence Diagram Models for Developing Transient Stability Software

Transient stability (TS) software is a tool that is used to analyze the stability of power system after subjected a large disturbance. The transient stability software tool can be built by any approaches such as procedural programming, object-oriented programming (OOP), or component-oriented programming (COP). The component-oriented based on the object-oriented design (OOD) is proposed for developing the TS software in this paper. In the component development, use cases and sequence diagram models are required to identify the sub-system and process involved in the TS problem. The use-cases are made according to the components and objects required in the TS tool such as load flow solver, transient stability solver, linear solver, and object-oriented power system model (OO-PSM). A sequence diagram model represents the detailed process of a use case. Both use-case and sequence diagram models required for TS software tool are focused in this paper. The unified modeling language (UML) which is a standard object modeling for developing component- and object-oriented design is used to develop the use cases and sequence diagram models.