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Sustainability 2017, 9(1), 73; doi:10.3390/su9010073

Control of the Air Supply Subsystem in a PEMFC with Balance of Plant Simulation

1
TecNM, CENIDET, Interior Internado Palmira S/N, Col. Palmira, 62490 Cuernavaca, Morelos, Mexico
2
CONACYT-TecNM, CENIDET, Interior Internado Palmira S/N, Col. Palmira, 62490 Cuernavaca, Morelos, Mexico
*
Author to whom correspondence should be addressed.
Academic Editor: Tomonobu Senjyu
Received: 14 November 2016 / Revised: 2 January 2017 / Accepted: 3 January 2017 / Published: 7 January 2017
(This article belongs to the Special Issue Sustainable Electric Power Systems Research)

Abstract

This paper deals with the design of a control scheme for improving the air supply subsystem of a Proton Exchange Membrane Fuel Cell (PEMFC) with maximum power of 65 kW. The control scheme is evaluated in a plant simulator which incorporates the balance of plant (BOP) components and is built in the aspenONE® platform. The aspenONE® libraries and tools allows introducing the compressor map and sizing the heat exchangers used to conduct the reactants temperature to the operating value. The PEMFC model and an adaptive controller were programmed to create customized libraries used in the simulator. The structure of the plant control is as follows: the stoichiometric oxygen excess ratio is regulated by manipulating the compressor power, the equilibrium of the anode-cathode pressures is achieved by tracking the anode pressure with hydrogen flow manipulation; the oxygen and hydrogen temperatures are regulated in the heat exchangers, and the gas humidity control is obtained with a simplified model of the humidifier. The control scheme performance is evaluated for load changes, perturbations and parametric variations, introducing a growing current profile covering a large span of power, and a current profile derived from a standard driving speed cycle. The impact of the control scheme is advantageous, since the control objectives are accomplished and the PEMFC tolerates reasonably membrane damage that can produce active surface reduction. The simulation analysis aids to identify the safe Voltage-Current region, where the compressor works with mechanical stability. View Full-Text
Keywords: PEM fuel cell; aspenONE; oxygen excess ratio; MRAC PEM fuel cell; aspenONE; oxygen excess ratio; MRAC
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MDPI and ACS Style

Cruz Rojas, A.; Lopez Lopez, G.; Gomez-Aguilar, J.F.; Alvarado, V.M.; Sandoval Torres, C.L. Control of the Air Supply Subsystem in a PEMFC with Balance of Plant Simulation. Sustainability 2017, 9, 73.

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