Smart home energy management system using fuzzy logic for continuous power supply with economic utilisation of electrical energy

Abstract

Power demand in India and in the world is increasing drastically which ultimately leads to the supply demand mismatch. The new demand management techniques are adopted in order to curtail the load demand during peak times. These demand side management techniques such as load based control and the price based control will hinder the freedom of the user. Hence there is a necessity to develop a system which will detect the peak times or supply power shortage times and do the necessary action so that the consumer do not face any issue. The system developed will address the problem discussed in order to bring down the supply demand mismatch. The system as a whole consists of two modules, a load forecasting module which will forecast the next day load of the smart home and an energy control module which will accept the inputs that are required for the continuous power supply during power failure with also economic utilization of the energy. The developed fuzzy logic system is tested for the various conditions of the input in the MATLAB/Simulink environment with the varying input such as electricity price of the day, load forecasted from the energy control module, state of charge level in the battery and the supply power availability. The outputs such as charging rate and supply of power are obtained and compared with the normal residence without the energy management system. It was found that with the implementation of the developed system, the user can enjoy continuous power supply with the economic utilization of the energy resulting in the reduction of electricity cost.