Fuzzy logic control management with stand alone photovoltaic - Fuel cell system

Abstract

In this paper, a Hybrid System introduced (HS), which consists of Solar Photo-Voltaic (PV) system and the Fuel Cell (FC) System as alternative source of electrical power. The HS is used to supply the required electricity to a Single-Phase load with the help of Pulse Width Modulation Voltage Source Inverter (PWM-VSI). The PV provide the FC system with the required power to be used when it is needed to feed the loads during the absent of the solar sun lights. The FC system generate the Hydrogen (H2) from electrolyzer which Supplied with the Photo-Voltaic energy and water (H2O). While, the generated H2 is reserved in a Tank which provides the FC Stack by the required Hydrogen level. The output voltage from the FC Stack then, Boosted and converted to AC voltage suitable for the loads using a PWM-VSI. The fuzzy logic control (FLC) is designed to control management between level of tank H2 and power demand of load. The individual components are simulated in MATLAB/Simulink environment and tested, also, complete system modeling is presented, and the results obtained are found to be satisfactory.