Incorporating home appliances into a DC home nanogrid.

Abstract

The possibility to incorporate home appliances of high efficiency into a home Direct Current (DC) nanogrid is presented. Switching power supplies made possible this fact. We present in this work an advance of the mathematical model for the switching power supplies as a part of the nanogrid, as well as preliminary results of measurements of currents in some home appliances used at home that will be used to elaborate a thorough model of DC nanogrids. We measured the consumption of meaningful loads on both Alternating Current (AC) and DC. For instance, we used an induction stove for cooking giving a loss of the 16.66% of the maximum wattage level while in the medium wattage the loss is of the 32.72 % (on AC) while for a laptop adapter, the loss is 3.33%. Their respective losses operating on DC are zero.