Optimal Placement and Sizing of Capacitors in Radial Distribution Systems: A Two-Stage Method |...

Shunt capacitor placement in radial distribution networks should be optimised for both technological and economic reasons. The Loss Sensitivity Factor (LSF) and the Cuckoo Search Algorithm (CSA) are used in this paper to find the optimal size and position of shunt capacitors with the goal of reducing cost due to power loss and reactive power compensation of distribution networks. The LSF is used in the first stage to predict possible candidate buses for shunt capacitor placement, reducing the quest space in the second stage and preventing repetitive load flow, while the CSA is used in the second stage to find the size and actual placement of the shunt capacitors that satisfy the operational constraints. The proposed two-stage approach is evaluated on the Ibadan Electricity Distribution Company's standard IEEE 33-bus and Ayepe 34-bus Nigerian radial distribution networks. The simulation results for the IEEE 33-bus system showed a percentage real and reactive power loss reduction of 34.28 percent and 28.94 percent, respectively, as compared to the base case, while the Ayepe 34-bus system showed a percentage real and reactive power loss reduction of 22.89 percent and 21.40 percent. The proposed approach was found to be efficient as compared to other strategies in the literature for the standardised IEEE 33-bus because it achieved technological benefits such as reduced total power loss, improved voltage profile, and bus voltage stability, as well as economic benefits such as reduced total cost due to electrical power loss and compensation.

Please see the link - https://www.journaljerr.com/index.php/JERR/article/view/17229