A Simplified Methodology for Determining Optimal Location and Capacity of Solar PV Distributed Generation to Reduce Losses

This paper presents distribution load flow analysis for balanced radial system in conjunction with Solar Photo-Voltaic (PV) distributed generation. The proposed approach utilizes Kirchhoff’s Current Law (KCL) and Kirchhoff’s Voltage Law (KVL) carried-out on forward and backward sweep iterative algorithm for the calculation of node voltages and currents flowing in radial branches. The power generated from solar PV system is determined by developing a mathematical model of solar PV modules that adopts to the Indian meteorological conditions. The distribution load flow analysis carried out by taking into the effect of this Solar PV generation. Optimal location for the distributed generation is determined by considering total system losses that can occur in 24 hours and the capacity to be installed is based on desired voltage improvement. The proposed approach has been implemented on standard 69bus radial distribution network. The simulation results obtained with and without inclusion of Solar PV generation are compared and discussed.