Nonlinear predictive control for the concentrations profile regulation under unknown reaction disturbances in a fuel cell anode gas channel

JOURNAL OF POWER SOURCES

卷:282

Article

Luna, Julio¹  Ocampo-Martinez, Carlos¹  Serra, Maria¹ 

[1] Univ Politecn Cataluna, Inst Robot & Informat Ind, CSIC UPC, E-08028 Barcelona, Spain

关键词: Concentration regulation;    Distributed model;    NMPC;    Fuel cell control;    Fuel cell observation;   

DOI  :  10.1016/j.jpowsour.2015.02.033

来源: Elsevier

【 摘 要 】

In this work, a nonlinear model predictive control (NMPC) strategy is proposed to regulate the concentrations of the different gas species inside a Proton Exchange Membrane Fuel Cell (PEMFC) anode gas channel. The purpose of the regulation relies on the rejection of the unmeasurable perturbations that affect the system: the hydrogen reaction and water transport terms. The model of the anode channel is derived from the discretisation of the partial differential equations that define the nonlinear dynamics of the system, taking into account spatial variations along the channel. Forward and backward discretisations of the distributed model are employed to take advantage of the boundary conditions of the problem. A linear observer is designed and implemented to perform output-feedback control of the plant. This information is fed to the controller to regulate the states towards their desired values. Simulation results are presented to show the performance of the proposed control method over a given case study. Different cost functions are compared and the one with minimum state-regulation error is identified. Suitable dynamic responses are obtained facing the different considered disturbances. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free