2012
IMAACA 2012 Proceeding
Mathematical modeling of a 500 We power module composed by a PEM fuel cell combined with a DC-DC enhanced potential output converter
Authors: Roque Machado de Senna, Marcelo Linardi, Douglas Alves Cassiano, Ivan Santos, Edgar Ferrari da Cunha, Henrique de Senna Mota, Rosimeire Aparecida Jerônimo
Abstract
This work presents the development of a mathematical modeling of a 500 We PEMFC fuel cell stack (MCC500) system combined with a dc-dc enhanced potential output converter. The MCC500 was developed at IPEN (Nuclear and Energy Research Institute) and the company Electrocell, using Brazilian technology exclusively. Mathematical developments and modeling have been performed, relying on experimental data collected at IPEN laboratory. The first step was to prepare an electrical system (pre-design) for the proposed model, which included the MCC500 parameters, like membrane ohmic resistance, activation resistance, electric double layer capacitance, open circuit potential, as well as DC-DC converter parameters, like the inductor and the transistor switching frequencies. Using the obtained parameters and a linear differential equation system with some mathematical manipulations, an electrical system model was determined. Simulations experiments demonstrated that the system was very stable. This contribution showed to be very important tool to generate useful potential for practical purposes, increasing the overall system electrical efficiency.
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