Implementação de um Modelo de PEMFC no software DIgSILENT para Estudo de Estabilidade

Abstract

This paper presents the computational implementation of a Proton Exchange Membrane Fuel Cell (PEMFC) model using PowerFactory DigSILENT software. The model utilizes experimental data from a NEXA 1200 W fuel cell, which operates within a voltage range of 26 to 43 V and supports a maximum current of 46 A. The control structure of the fuel cell comprises three stages: dynamic modeling, frequency control, and power control. To validate the model, a series of tests were conducted to examine the effects of varying cell current and temperature on terminal voltage and output power. Specifically, current was varied between 5 and 25 A using step and triangular waveforms, while temperature was adjusted from 25°C to 47°C. The model’s results were compared with experimental data available in the literature. Finally, the PEMFC model was integrated into a power system to assess its performance in frequency control scenarios.