An Optimization-Based Intentional Islanding Scheme for Service Restoration in Distribution Systems Considering Anti-Parallel Operation of Distributed Generations

An islanding operation of distributed generations (DGs) in emergencies due to a fault distribution systems can be means power supply for important loads outage areas by facilitating the self-sufficient capability DGs forming microgrids. This paper presents an optimization-based intentional scheme derive near-optimal service restoration (SR) plan. The anti-parallel is considered new constraint that avoids more than two island thereby, enabling simpler control and system emergency. Each created partitioning based on tree representation network fast searching structure considering load importance, genetic algorithm (GA) utilized explore possible SR solutions. Case studies IEEE 69-bus according various locations are conducted, simulation results show proposed restore with higher priority DGs. Furthermore, time deriving optimal solution reduced since evaluations infeasible solutions not performed.