Modeling of multi-phase DC-DC converter with a compensator for better voltage regulation in DC micro-grid application

ADC microgrid system made up of the utility grid, solar PV, electric double layer capacitor (EDLC), and loads is proposed and a three pole DC distribution line is adopted. A novel, two-phase interleaved boost converter having reduced size of filter (capacitor), with a compensator for better voltage regulation is introduced. This is better suitable for a DC microgrid to coalesce solar photovoltaic (PV) output into DC distribution. Also a bidirectional two-phase interleaved boost converter is used as EDLC converter. This system deals with 340V DC power supply which can supply high quality power with three wire (+170V line, neutral line and -170V line) DC distribution line. A voltage balancer is introduced for balancing positive and negative voltage. The performance of two-phase boost converter within a DC microgrid environment is demonstrated through simulation using the software MATLAB/SIMULINK.