Optimal Recloser Placement in Power Networks Based on Reliability and Cost-Benefit Analysis

Power system protection devices contribute to the detection and mitigation of the faults in a fast and efficient manner. As the grid reliability can degrade due to the faults, the use of auto-recloser in the distribution networks can contribute to the reliability improvement. This study focuses on the identification of the optimum number and location of the auto-reclosers in a distribution network, to achieve higher system reliability with the minimum cost. This study utilizes standard reliability indices, such as SAIDI, SAIFI, CAIDI, RNRE, and ARAE to identify the optimal number and placement of auto-reclosers. Furthermore, a cost-benefit analysis has been carried out to ensure the maximum economic benefits by right investment in auto-reclosers. The simulation results have been presented by simulating IEEE 34 bus network both in radial and meshed connections. The results highlight the optimal number and location of the auto-reclosers in the network. The trajectory of the system reliability, cost, and benefit have been presented for the increased numbers of auto-reclosers.