Peak Load Reduction and Voltage Analysis of Renewable Powered Interconnected Homes

Abstract

In view of the future research on power-sharing between the residential houses, this article is mainly focused on the nature and operation of low voltage Micro-Grid (MG) with limited residential houses connected with distributed energy resources. The five residential houses are connected in a ring main distribution structure with a 3-phase, 440 V, 50 Hz low voltage MG with renewable energy sources. Five different case scenarios were discussed in this paper. Voltage Monitoring is done on the cases such as the bus voltages under normal load conditions, under overloaded conditions of all the residential houses, when disturbances occurred at the wind turbine side, during shut down occurs at one of the wind turbines, and also in case of short circuit at one of the residential houses. The above-mentioned cases were tested under PSCAD environment in order to assure the accuracy. Also, five buses grid-connected MG was installed with solar PV based battery bank and simulated in Dig-Silent PF software environment to reduce the peak load. The results of these case studies will be beneficial for investigators to validate the performance of low voltage MG.