Improving Reliability on Distribution Systems Using BPSO for Device Placement

This paper presents a Binary Particle Swarm Optimization algorithm for strategic placement of additional protection devices to improve reliability on real KwaZulu-Natal distribution networks, each with unique characteristics. Historical data was used to model the performance of the components and simulated using DigSilent PowerFactory to evaluate reliability on the system. The results of each case study considered are reported and discussed to find the most economically feasible solution. The Binary Particle Swarm Optimization algorithm introduced results in minimal improvements after the addition of switches. Nonetheless, there are significant improvements in System Average Interruption Duration Index of up to 21% and Energy Not Served of 11% after the placement of additional reclosers.