Voltage Profile Analysis in Distribution Network for Allowable Hosting Capacity from PV Integration

A high amount of PV integration into the low voltage distribution network is a major issue; it may cause contrary grid effects in terms of voltage unbalance and system instability. Thus, the best location for PVs placement and their maximum capacity needs to be determined. In this study, a novel approach based on the calculation of the local impedance index is considered. This calculation is carried out for different areas in the network and for PV integration upto 100% to decide both the most suited area and maximum allowable hosting capacity (HC). The simulation uses GridPV and OpenDSS toolbox/platform for performing the study. It is shown that with the approach applied, it is possible to keep the voltage violations limited, mainly at far-end feeder buses.