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Sliding mode control of an autonomous parallel fuel cell-super capacitor power source

Abstract

Nowadays, hydrogen fuel cell (FC) based systems emerge as one promising renewable alternative to fossil fuel systems in automotive and residential applications. However, their output dynamic response is relatively slow, mostly due to water and reactant gases dynamics. To overcome this limitation, FC-super capacitors (SCs) topologies can be used. The latter is capable of managing very fast power variations, presenting in addition high power density, long life cycle and good charge/discharge efficiency. In this work, a FC-SCs-based autonomous hybrid system for residential applications is considered. The FC and SCs are connected in parallel, through two separate DC/DC converters, to a DC bus. Under steady state conditions, the FC must deliver the load power requirement, while maintaining the SCs voltage regulated to the desired value. Under sudden load variations, the FC current rate must be limited to assure a safe transition to the new point of operation. During this current rate limitation mode, the SCs must deliver or absorb the power difference. To this end, a sliding mode strategy is proposed to satisfy to control objectives. The main one is the robust regulation of the DC bus voltage, even in the presence of system uncertainties and disturbances, such as load changes  More>>
Authors:
More, Jeronimo J. , Email: jmore@ing.unlp.edu.ar; [1]  Puleston, Paul F; [2]  Kunusch, Cristian; Colomer, Jordi Riera I [3] 
  1. Universidad Nacional de La Plata (UNLP), La Plata, Buenos Aires (Argentina). Facultad de Ingenieria. Lab. de Electronica Industrial, Control e Instrumentacion
  2. Consejo de Investigaciones Cientificas y Tecnicas (CONICET), Buenos Aires (Argentina)
  3. Universitat Politecnica de Catalunya, Barcelona (Spain). Inst. de Robotica i Informatica Industrial (IRII)
Publication Date:
Jul 01, 2010
Product Type:
Conference
Report Number:
ETDE-BR-1861
Reference Number:
RN11035351; TVI: 1108
Resource Relation:
Conference: 5. International workshop on hydrogen and fuel cells - WICaC 2010, Campinas, SP (Brazil), 26-29 Oct 2010; Related Information: In: Proceedings of WICaC 2010: 5. International workshop on hydrogen and fuel cells, 249 pages.
Subject:
30 DIRECT ENERGY CONVERSION; HYDROGEN FUEL CELLS; CAPACITIVE ENERGY STORAGE EQUIPMENT; DC TO DC CONVERTERS; HYBRID SYSTEMS; CONTROL SYSTEMS; COMPUTERIZED SIMULATION; LOAD ANALYSIS
OSTI ID:
21411327
Research Organizations:
Centro Nacional de Referencia em Energia do Hidrogenio (CENEH/UNICAMP), Campinas, SP (Brazil); Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Inst. de Fisica Gleb Wataghin. Lab. de Hidrogenio
Country of Origin:
Brazil
Language:
English
Other Identifying Numbers:
TRN: BR1104200
Availability:
Commercial reproduction prohibited; OSTI as DE21411316; www.osti.gov/servlets/purl/21411316-VJHTeH/
Submitting Site:
BR
Size:
page(s) 108-117
Announcement Date:
Mar 13, 2013

Citation Formats

More, Jeronimo J. , Email: jmore@ing.unlp.edu.ar, Puleston, Paul F, Kunusch, Cristian, and Colomer, Jordi Riera I. Sliding mode control of an autonomous parallel fuel cell-super capacitor power source. Brazil: N. p., 2010. Web.
More, Jeronimo J. , Email: jmore@ing.unlp.edu.ar, Puleston, Paul F, Kunusch, Cristian, & Colomer, Jordi Riera I. Sliding mode control of an autonomous parallel fuel cell-super capacitor power source. Brazil.
More, Jeronimo J. , Email: jmore@ing.unlp.edu.ar, Puleston, Paul F, Kunusch, Cristian, and Colomer, Jordi Riera I. 2010. "Sliding mode control of an autonomous parallel fuel cell-super capacitor power source." Brazil.
@misc{etde_21411327,
title = {Sliding mode control of an autonomous parallel fuel cell-super capacitor power source}
author = {More, Jeronimo J. , Email: jmore@ing.unlp.edu.ar, Puleston, Paul F, Kunusch, Cristian, and Colomer, Jordi Riera I}
abstractNote = {Nowadays, hydrogen fuel cell (FC) based systems emerge as one promising renewable alternative to fossil fuel systems in automotive and residential applications. However, their output dynamic response is relatively slow, mostly due to water and reactant gases dynamics. To overcome this limitation, FC-super capacitors (SCs) topologies can be used. The latter is capable of managing very fast power variations, presenting in addition high power density, long life cycle and good charge/discharge efficiency. In this work, a FC-SCs-based autonomous hybrid system for residential applications is considered. The FC and SCs are connected in parallel, through two separate DC/DC converters, to a DC bus. Under steady state conditions, the FC must deliver the load power requirement, while maintaining the SCs voltage regulated to the desired value. Under sudden load variations, the FC current rate must be limited to assure a safe transition to the new point of operation. During this current rate limitation mode, the SCs must deliver or absorb the power difference. To this end, a sliding mode strategy is proposed to satisfy to control objectives. The main one is the robust regulation of the DC bus voltage, even in the presence of system uncertainties and disturbances, such as load changes and FC voltage variations. Additionally, a second control objective is attained, namely to guarantee the adequate level of charge in the SCs, once the FC reaches the new steady state operation point. In this way, the system can meet the load power demand, even under sudden changes, and it can also satisfy a power demand higher than the nominal FC power, during short periods. The proposed control strategy is evaluated exhaustively by computer simulation considering fast load variations. The results presented in this work, corresponds to the first stage of a R and D collaboration project for the design and development of a novel FC-SCs-based autonomous hybrid system. In the next phase, the proposed controllers will be implemented and experimentally validated in the ACES's Fuel Cells Laboratory at the Institut de Robotica i Informatica Industrial, CSIC-Technical University of Catalonia (UPC). (author)}
place = {Brazil}
year = {2010}
month = {Jul}
}