Abstract:
This thesis presents mathematical model using MATLAB/ Simulink in order to analyze the performance of proton exchange membrane fuel cell (PEMFC) together with DC/DC buck converter model. It will lead to a building of a prototype of PEMFC simulator, which will be useful to study the behavior of the fuel cell.
It comprises in two major parts. The first part is a mathematical modeling of the fuel cell by MATLAB/Simulink program and constructs a prototype of the operation control system. The fuel cell in the project is a 1.2 kW, 26-43 output voltage NEXA@1200 from Ballard Company. The simulation result was compared with an actual experiment in laboratory by using the same parameters. The second part is to build a DC buck converter, MOSFET modules are used as switches in the converter with the switching frequency of 10 kHz, together with the modeled in MATLAB/Simulink program to a practical works using a proper interfacing board DS1104.
The experimental result is determined by comparing between the fuel cell model and experiment DC Converter at output current 10 A. The output voltage level 38.9 V, 35.2 V, output power level 389 W, 339 W, respectively. The proposed system can operate efficiency at 89.49%, results from both experiment and model simulation is approximately.