IMPROVEMENT OF POWER SYSTEM DISTRIBUTION PROTECTION SCHEME WITH INCORPORATION OF DISTRIBUTED GENERATION

Abstract

Distributed Generation (DG) has been mostly employed in power system due to progression in exploiting renewable energy resources, necessity for enhanced power quality and reliability of power system. However, installing DG in an electric power system changes its protection coordination, thereby increasing the fault level of the power system. This research paper therefore, improves the power system protection scheme on distribution system based on integration of DG. Load flow at contingence on 33-bus Ilorin industrial distribution feeder with incorporation of DG was performed using Bus Injection to Branch Current (BIBC) and Branch Current to Bus Voltage (BCBV) iterative technique. The coordination problem of the protection scheme in-feed from the DG was improved using Salp Swarm Algorithm (SSA) and simulation was carried out in MATLAB R2021a.  The results obtained demonstrated the effectiveness of the SSA in providing optimal solution for industrial distribution feeder system protection with DG incorporated. Thus, this study can be used in electrical power system protection and monitoring.

Keywords: Power System, Distributed Generation, Renewable Energy Resources, BIBC-BCBV, Salp Swarm Algorithm, Distribution Feeder, Protection Scheme.

DOI: 10.7176/JETP/15-1-03

Publication date: February 28^th 2024