Potential determination, performance and voltage profile analysis of grid connected roof-top solar PV at Bishnumati Distribution Feeder

Abstract

This thesis presents the solar roof-top photo-voltaic generation capacity at Bishnumati feeder of Balaju Distribution Control System (DCS) with its performance and voltage profile analysis during grid connection by considering eleven potential commercial and non-commercial buildings. The Building Foot-Print Area (BFA) obtained is 8915.13 m2 and the actual photo-voltaic area (PVA) is 4190.11 m2, which is used to install the solar module in the roof of the selected buildings. PVsyst is used for performance analysis, the energy generated by solar array (E_array) and energy supplied to the grid (E_grid) is 1018.319 MWh and 982.039 MWh per year respectively. The performance ratio over the year is 0.74. The average capacity factor of overall installation is obtained as 17 %. ETAP is used for feeder modeling and load flow analysis. Form load flow analysis the minimum grid voltage before solar PV injection is 10.32 kV at a nominal bus voltage of 11 kV. After injection of solar PV into the grid, the minimum bus voltage is improved to 10.53 kV.