AC home appliances retrofiting for DC microgrids

This work demonstrates the possibility of retrofitting the AC home appliances for direct usage in DC microgrids using simple and low-cost methods. Nowadays, most of the appliances are using AC-DC conversion, which creates the possibility of direct connection of home appliances to DC voltage grids. The paper shows the practical results made on an air conditioning/heat pump system, an induction heating cooker and a refrigerator by retrofitting to a 350V DC grid.