A100 kw single stage grid-connected PV system with controlled DC-link voltage

Abstract

Abstract India is country which blessed with about 300 clear sun raising days in a year. The solar energy available in a year exceeds the possible energy output of all fossil fuel energy reserves in india. The proposed paper provided control method to adjust the DC-link voltage as well as rate of change of change of DC- Link energy in 3-phase voltage-source inverters. The proposed voltage controller used PI controllers along with feed forward feedback .If it is possible control DC-link voltage and rate of change of DC-link voltage precisely while extracting maximum power from panel it is possible to decrease the DC capacitance and can improve system stability. Matlab/Simulink software package is been used to make the model and simulation system.