A new hybrid distribution system interconnected with PV array

Nowadays, due to the increase of the digital product which can be operated in dc voltage, the use of dc power has increased inside the electric appliances. As the appliances has been equipped with ac/dc converter to supply the driving voltage of dc voltage by ac/dc converter, there could occur the problems such as poor power factor, harmonic increase of the input current and the conversion loss. The hybrid distribution (HBD) system proposed in this study indicates the total system which is supplied to the all AC and DC loads at home by the renewable energy of PV system together with AC commercial source from the utility. In this paper is verified the operation principle and the feasibility of the designed HBD system. The twin systems are set up for the comparison of the conventional AC system and the proposed HBD system linked under the same conditions. Particularly the distribution efficiency, power factor and harmonic characteristics are investigated.