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In a world that is constantly moving towards digitalization and electronics, it is to be noted that they are powered by DC supply. In our current residential system, however, we are using AC supply for powering majority of the motoring loads and few heating loads. We are using the same AC supply for powering DC appliances such as laptops, LED TVs, mobile phones, etc. In a house without inverter, this might seem to be a right way of powering the devices. On the other hand, in a house with inverter and power back up provision, a lot of power is wasted when energy is converted from one form to another multiple times. Considering the nature of power supply, we would be having in the future from renewable energy systems, we are forced to shift from AC residential distribution system to DC residential distribution system. Converters that have same nature of power supplies at the input as well as the output ends are more efficient than that of converters that have different nature of power supplies at the ends. With no doubt in the future, the AC motors we are using in our home appliances will also be replaced with BLDC motors. Our project deals with the study of how efficiently DC residential systems work when compared with AC residential systems. We also come forward with an idea that could help appliance manufacturers to switch to the new trend of DC distribution system. Apart from this, cost analysis has also been made comparing the present system and proposed system.
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