Smart Hybrid Power Sources Controller based on Fuzzy Logic for Energy Management using Wireless Sensor Networks

The diverse of renewable and traditional sources of electrical power generation has been driven the need for Home Energy Management System (HEMS) to control the operation of different sources inside smart homes. In this paper, Hybrid Power Source Controller (HPSC) with the presence of the utility Smart Grid (SG) and the Fuel Cell (FC) is invented to optimally control and share the demands of required load power between SG and FC based on Fuzzy Logic Controller (FLC). The FLC is designed to reduce the electricity price and to maintain the grid stability. Wireless Sensor Network (WSN) is employed to measure the grid frequency, electrical current, and electrical voltage. The inputs to the FLC are the load power and the grid frequency, while the outputs of FLC are the amounts of electrical powers delivered from the SG and FC. Simulation results show that the proposed HPSC can smartly compute the amounts of delivered power from the SG and FC according to the current measurements of grid frequency and load electrical power so that the energy cost and grid stability are improved.