Comparison of steady state performances of practical large-scale PV configurations

The concern regarding global warming and the advancement of power electronic devices have enabled the development of large-scale PVs (e.g. MW and GW range) in power systems. A number of internal layouts of AC collector grids are reported in the literature for the large-scale PV (LSPV). This study comprehensively assesses the static performance of various configurations of large-scale PVs. The PV systems are modeled in DIgSILENT Power Factory in detail. The widely used PV system configurations such as radial, star, ring, multiring, and multi-star have been considered in this study. From the results given in this paper, it is apparent that the PV system configuration has significant effects on fault current and active power injection. From the given results, it is evident that the control methods employed in PV systems also influence the steady state performance of the system.