Search

Your search keyword '"Yousfi Steiner Nadia"' showing total 2 results
Start Over Author "Yousfi Steiner Nadia" Topic distributed parameter system
2 results on '"Yousfi Steiner Nadia"'

1. Nonlinear model predictive control methodology for efficiency and durability improvement in a fuel cell power system

Author

Luna Pacho, Julio Alberto, Jemei, Samir, Yousfi-Steiner, Nadia, Husar, Attila Peter|||0000-0001-8503-3837, Serra, Maria|||0000-0002-9885-8093, Institut de Robòtica i Informàtica Industrial, Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial, and Universitat Politècnica de Catalunya. ACES - Control Avançat de Sistemes d'Energia

Subjects
distributed parameter system, Informàtica::Automàtica i control [Àrees temàtiques de la UPC], model predictive control, nonlinear observer, starvation, PEMFC, Control theory::Predictive control [Classificació INSPEC], degradation
Abstract

The main contribution of this work is the improvement of the efficiency of a PEMFC power system while guaranteeing conditions that also improve its durability. Adopting the NMPC scheme with the distributed parameter model and the nonlinear observer, the efficiency of the PEMFC-based system can be maximized guaranteeing at the same time the appropriate internal gas concentration profiles to avoid global and local hydrogen and oxygen starvation and proper membrane humidification.

2. Nonlinear predictive control for durability enhancement and efficiency improvement in a fuel cell power system.

Author

Luna, Julio, Jemei, Samir, Yousfi-Steiner, Nadia, Husar, Attila, Serra, Maria, and Hissel, Daniel

Subjects
*PROTON exchange membrane fuel cells, *DURABILITY, *WATER vapor, *ELECTRIC potential, *NONLINEAR analysis, *PREDICTIVE control systems
Abstract

In this work, a nonlinear model predictive control (NMPC) strategy is proposed to improve the efficiency and enhance the durability of a proton exchange membrane fuel cell (PEMFC) power system. The PEMFC controller is based on a distributed parameters model that describes the nonlinear dynamics of the system, considering spatial variations along the gas channels. Parasitic power from different system auxiliaries is considered, including the main parasitic losses which are those of the compressor. A nonlinear observer is implemented, based on the discretised model of the PEMFC, to estimate the internal states. This information is included in the cost function of the controller to enhance the durability of the system by means of avoiding local starvation and inappropriate water vapour concentrations. Simulation results are presented to show the performance of the proposed controller over a given case study in an automotive application (New European Driving Cycle). With the aim of representing the most relevant phenomena that affects the PEMFC voltage, the simulation model includes a two-phase water model and the effects of liquid water on the catalyst active area. The control model is a simplified version that does not consider two-phase water dynamics. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results