Placements of Capacitors and BESS for the Power Quality Distribution System with Minimum Cost Consideration

Poor voltage quality and high-power loss often found in radial network distribution system. Engineers and researchers have developed various compensation techniques to maintain the power quality transmissible to customers, This study proposes a power injection strategy employing both battery energy storage systems (BESS) and capacitor banks. The aim is to address issues related to network vulnerability, such as voltage drops and system inefficiencies. Simulation based on IEEE 33 bus with system modification and PSO (particle swarm optimization) algorithm for optimization. The simulation comprises four case variations, the base case, capacitor bank optimization only, battery-only optimization, and simultaneous optimization of both capacitor banks and batteries. Consequently, the minimum voltage for 24 hours in the base case is 0.93161 pu, and the daily charge for active power loss amounts to $ 217.16. The amount of capacitor bank that deemed to be optimal in bank capacitor optimization variation is 2. This variation minimum voltage result for 24 hours is 0.95000 pu and the power lost cost for daily operational is $ 158.41. The amount of batteries that deemed to be optimal in battery optimization variation is 2. This variation minimum voltage result for 24 hours is 0.95203 pu and the daily active power loss charge is $ 182.22. Simultaneously optimizing capacitors and batteries resulted in the most favorable configuration, comprising two capacitor banks and one battery. In this setting, the minimum voltage over 24 hours reaches 0.95009 pu, and the functional power loss amounts to $ 157.50. Economic analysis for a 10-year development plan revealed that the most substantial cost savings were achieved through the placement of two capacitor banks. Over the course of ten years, this configuration leads to cost savings of $ 183,164.5.