Journal Article10.1115/1.1567307
Analysis for the Effect of Inverter Ripple Current on Fuel Cell Operating Condition
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TL;DR: In this paper, the impact of inverter load dynamics on fuel cell stack performance and stack lifetime is examined using a dynamic model for the bulk conditions within the stack, as well as a one-dimensional model for detailed mass transport occurring within the electrode of a cell.
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Abstract: The effect of inverter ripple current on fuel cell stack performance and stack lifetime remains uncertain. This paper provides a first attempt to examine the impact of inverter load dynamics on the fuel cell. Since reactant utilization is known to impact the mechanical nature of a fuel cell, it is suggested that the varying reactant conditions surrounding the cell govern. at least in part the lifetime of the cells. This paper investigates these conditions through the use of a dynamic model for the bulk conditions within the stack, as well as a one-dimensional model for the detailed mass transport occurring within the electrode of a cell. These two independent modeling approaches are used to verify their respective numerical procedures. in this work, the inverter load is imposed as a boundary condition to the models. Results show the transient behavior of the reactant concentrations within the stack, and of the mass diffusion within the electrode under inverter loads with frequencies between 30 Hz and 1250 Hz.
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Power Electronics and Control Techniques for Maximum Energy Harvesting in Photovoltaic Systems
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TL;DR: In this article, a review of methods for modeling a photovoltaic array working in uniform and mismatched conditions is presented, as well as several ways to achieve the best maximum power point tracking (MPPT) performance.
440
Low Frequency Current Ripple Reduction Technique With Active Control in a Fuel Cell Power System With Inverter Load
Changrong Liu,Jih-Sheng Lai +1 more
TL;DR: In this paper, an advanced active control technique is proposed to incorporate a current control loop in the dc-dc converter for ripple reduction, and the proposed active ripple reduction method has been verified with computer simulation and hardware experiment with a proton exchange membrane type fuel cell using a multiphase dc-DC converter along with a full-bridge dc-ac inverter.
336
Dynamic modeling and simulation of a small wind–fuel cell hybrid energy system
M.J. Khan,M.T. Iqbal +1 more
TL;DR: In this article, the authors describe dynamic modeling and simulation results of a small wind-fuel-cell hybrid energy system, which consists of a 400 W wind turbine, a proton exchange membrane fuel cell (PEMFC), ultracapacitors, an electrolyzer, and a power converter.
273
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