Study of low-voltage distribution system with decentralized PV-BES and centralized BES for rural village in developing country

Abstract

This paper address a study of Low-Voltage (LV) distribution system composed by decentralized PV-BES and centralized BES in developing country. The purposes of work is to size the PV-BES which connected into grid. Genetic Algorithm (GA) optimization solver in MATLAB has been employed to size the maximum PV penetration and minimum BES of decentralization according to PV and load curves. A sizing strategy is developed to determine a centralized BES capacity at MV/LV substation. The centralized BES here will charge an energy while decentralized PV-BES output is higher than consumptions and it will be idle/discharged when the decentralized PV-BES output is equal or lower than consumptions. The simulation results achieved on a test system confirm a helpfulness of PV and BES integrated into LV distribution systems.