Any possible efficiency improvements in whiteware help reduce the overall power consumption of a household. Modern inverter-driven type whiteware such as refrigerators internally operate on a DC bus, and this helps us to power them from a DC bus of a renewable energy system. However, fluctuating nature of the renewable energy DC bus calls for an energy storage system to increase the reliability of the DC operation. In this paper we present the preliminary results of running an experiment of a DC camping refrigerator from a solar DC bus, with a supercapacitor bank forming an integral part of a supercapacitor assisted (SCA) low-frequency DC-DC converter. In addition, preliminary data related to converting a 230 V, 50 Hz AC operable refrigerator to operate from solar DC bus and the essential details of the new low frequency SCA converter are also presented.
