An Expert System Based Software for Reduction of Sequence Networks

This paper describes a new Expert System Based Software for Reduction of Sequence Networks. The main aim is to develop a new tool that helps students to reduce the corresponding sequence networks to its simplest form. Reduction of sequence networks is important for power system fault analysis. The equivalent positive-, negativeand zerosequences are represented as a series and series-parallel combination of per-unit impedance. Reduction process will replaces them by the single equivalent impedance for each sequence network. Using this tool, students will deeply understand the flow of reduction process. Rather than that, the system is capable to examine the sequence network to observe whether it can be reduced depends on the selected fault location. This system applies the expert system concepts during the process. Hopefully this tool will provide new medium in learning and teaching fault analysis besides make it easy and interesting to learn.