REACTANT FLOW CONTROL OF PEM FUEL CELL SYSTEM FOR ITS OPTIMAL PERFORMANCE

In this project, a Proton Exchange Membrane Fuel cell (PEMFC) system which works on hybrid approach employing Maximum Power Point Tracking (MPPT) and fuel flow control to trim down fuel wastage is presented. In the proposed system both Perturb & Observe (P&O) MPPT algorithm and fuzzy logic based MPPT algorithm are implemented for various input conditions like different temperature and different membrane water content of the fuel cell and compared. Simulations show the output power of fuzzy logic based MPPT technique model provides better performance than the conventional P&O algorithm based model. Also the fuel controller is implemented for the fuzzy logic based model and the required amount of input fuel to the fuel cell is obtained. All the simulations are done using Sim Power System blocks of MATLAB SIMULINK software