Partial Power Converter Based on Isolated Wide Input Range DC-DC Converter for Residential PV Applications

A wide input voltage range isolated dc-dc isolated is utilized in this paper to demonstrate a parallel input series output partial power converter. The converter is operating well at wide range which is important feature for PV system, where the voltage is moving all over the year. The system principle of operation and simulation results are presented and discussed in the paper. The converter is well operating with more than 99% efficiency when partiality ratio between±15%. However, with high partiality like ± 30%, the converter is losing its main (a) features. An MPPT algorithm is moving the phase shift of the converter to extract the maximum power and design the partiality ratio.