Intelligent Architecture in Home Energy Management System for Smart Building, Moroccan Case Study

Abstract

Managing energy in a building is an optimizing solution for smart homes. The user will be autonomous in managing his need in energy. It is an energy control and management that reacts to MPL (Maximum Power Limit), hybrid system Pv/Battery and temperature of heater. It manages the operation of appliances which are shiftable with respect to the tariffication of electricity, this minimizes the electricity bill. The proposed algorithm receives as input data, the tariffication profile, the power produced by the Pv, the Soc of batteries and the timing and sequencing of turning on the shiftable appliances. The turning on timing is fixed by the user’s priorities. The batteries are charged by the Pv panels only during periods where the cost of electricity is high. It guaranties the thermal comfort at 24 °C and the free usage of all appliances when the hybrid system Pv/Battery is activated. In the contrary if there is a default in the hybrid system which does not respond to the energy requested, it flips the building’s electricity supply to the public grid immediately. In this case the algorithm adjusts the temperature in the range 18–24 °C when the requested power is greater than the MPL and forbids the operation of shiftable appliances in periods where the cost of electricity is high. This will limit the power request to MPL and optimize the electricity bill. The study is realized according to the meteorological conditions of Oujda city and the tariffication of the Moroccan national office of electricity. The electric and thermal models of the building and the hybrid system Pv/Battery are implemented in Matlab/Simulink and the simulation results show that the cost is reduced to 16.41% if the building is uniquely supplied by the grid and to 55.22% for complete system.