Documents disponibles écrits par cet auteur

Analysis of differential flatness-based control for a fuel cell hybrid power source / Thounthong, P. in IEEE transactions on energy conversion, Vol. 25, N° 3 (Septembre 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 909 - 920 Titre : Analysis of differential flatness-based control for a fuel cell hybrid power source Type de document : texte imprimé Auteurs : Thounthong, P., Auteur ; Pierfederici, S., Auteur ; Davat, B., Auteur Année de publication : 2011 Article en page(s) : pp. 909 - 920 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Distributed  power  generation;  energy  management  systems;  fuel  cell  power  plants;  nonlinear  control  systems;  power  convertors;  power  generation  control;  supercapacitors Résumé : This paper presents an innovative control law for distributed dc generation supplied by a fuel cell (FC) (main source) and supercapacitor (auxiliary source). This kind of system is a multiconverter structure and exhibits nonlinear behavior. The operation of a multiconverter structure can lead to interactions between the controls of the converters if they are designed separately. Typically, interactions between converters are studied using impedance criteria to investigate the stability of cascaded systems. In this paper, a nonlinear control algorithm based on the flatness properties of the system is proposed. Flatness provides a convenient framework for meeting a number of performance specifications for the hybrid power source. Using the flatness property, we propose simple solutions to hybrid energy management and stabilization problems. The design controller parameters are autonomous of the operating point; moreover, interactions between converters are taken into account by the controllers, and high dynamics in disturbance rejection is achieved. To validate the proposed method, a hardware system is realized with analog circuits, and digital estimation is accomplished with a dSPACE controller. Experimental results with small-scale devices (a polymer electrolyte membrane FC of 1200 W, 46 A and a supercapacitor module of 100 F, 500 A, and 32 V) in a laboratory corroborate the excellent control scheme during a motor-drive cycle. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5546934&sortType%3Das [...] [article] Analysis of differential flatness-based control for a fuel cell hybrid power source [texte imprimé] / Thounthong, P., Auteur ; Pierfederici, S., Auteur ; Davat, B., Auteur . - 2011 . - pp. 909 - 920. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 909 - 920 Mots-clés : Distributed  power  generation;  energy  management  systems;  fuel  cell  power  plants;  nonlinear  control  systems;  power  convertors;  power  generation  control;  supercapacitors Résumé : This paper presents an innovative control law for distributed dc generation supplied by a fuel cell (FC) (main source) and supercapacitor (auxiliary source). This kind of system is a multiconverter structure and exhibits nonlinear behavior. The operation of a multiconverter structure can lead to interactions between the controls of the converters if they are designed separately. Typically, interactions between converters are studied using impedance criteria to investigate the stability of cascaded systems. In this paper, a nonlinear control algorithm based on the flatness properties of the system is proposed. Flatness provides a convenient framework for meeting a number of performance specifications for the hybrid power source. Using the flatness property, we propose simple solutions to hybrid energy management and stabilization problems. The design controller parameters are autonomous of the operating point; moreover, interactions between converters are taken into account by the controllers, and high dynamics in disturbance rejection is achieved. To validate the proposed method, a hardware system is realized with analog circuits, and digital estimation is accomplished with a dSPACE controller. Experimental results with small-scale devices (a polymer electrolyte membrane FC of 1200 W, 46 A and a supercapacitor module of 100 F, 500 A, and 32 V) in a laboratory corroborate the excellent control scheme during a motor-drive cycle. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5546934&sortType%3Das [...]

Analysis of supercapacitor as second source based on fuel cell power generation / Thounthong, P. in IEEE transactions on energy conversion, Vol. 24 N°1 (Mars 2009) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 24 N°1 (Mars 2009) . - pp. 247 - 255 Titre : Analysis of supercapacitor as second source based on fuel cell power generation Type de document : texte imprimé Auteurs : Thounthong, P., Auteur ; Raël, S., Auteur ; Davat, B., Auteur Année de publication : 2009 Article en page(s) : pp. 247 - 255 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Distributed  power  generation;  motor  drives;  proton  exchange  membrane  fuel  cells;  supercapacitors Résumé : This paper presents the utilization of a supercapacitor as an auxiliary power source in a distributed generation system, composed of a polymer electrolyte membrane fuel cell (PEMFC) as the main energy source. The main weak point of fuel cells (FCs) is slow dynamics because one must limit the FC current slope in order to prevent fuel starvation problems, to improve its performance and lifetime. The very fast power response and high specific power of a supercapacitor can complement the slower power output of the main source to produce the compatibility and performance characteristics needed in a load. The FC and supercapacitor characteristics are clearly presented. Experimental results with small-scale devices (supercapacitor bank: 292-F, 30-V, 400-A; PEMFC: 500-W, 40-A) illustrate excellent performance during a motor drive cycle. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4745787&sortType%3Das [...] [article] Analysis of supercapacitor as second source based on fuel cell power generation [texte imprimé] / Thounthong, P., Auteur ; Raël, S., Auteur ; Davat, B., Auteur . - 2009 . - pp. 247 - 255. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N°1 (Mars 2009) . - pp. 247 - 255 Mots-clés : Distributed  power  generation;  motor  drives;  proton  exchange  membrane  fuel  cells;  supercapacitors Résumé : This paper presents the utilization of a supercapacitor as an auxiliary power source in a distributed generation system, composed of a polymer electrolyte membrane fuel cell (PEMFC) as the main energy source. The main weak point of fuel cells (FCs) is slow dynamics because one must limit the FC current slope in order to prevent fuel starvation problems, to improve its performance and lifetime. The very fast power response and high specific power of a supercapacitor can complement the slower power output of the main source to produce the compatibility and performance characteristics needed in a load. The FC and supercapacitor characteristics are clearly presented. Experimental results with small-scale devices (supercapacitor bank: 292-F, 30-V, 400-A; PEMFC: 500-W, 40-A) illustrate excellent performance during a motor drive cycle. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4745787&sortType%3Das [...]

Control algorithm of fuel cell and batteries for distributed generation system / Thounthong, P. in IEEE transactions on energy conversion, Vol. 23 N°1 (Mars 2008) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 23 N°1 (Mars 2008) . - pp. 148 - 155 Titre : Control algorithm of fuel cell and batteries for distributed generation system Type de document : texte imprimé Auteurs : Thounthong, P., Auteur ; Raël, S., Auteur ; Davat, B., Auteur Année de publication : 2008 Article en page(s) : pp. 148 - 155 Note générale : Energy conversion Langues : Anglais (eng) Mots-clés : Distributed  power  generation;  electric  vehicles;  energy  storage;  hybrid  power  systems;  power  system  control;  proton  exchange  membrane  fuel  cells;  secondary  cells Résumé : This paper intends to propose a novel control algorithm for utilizing a polymer electrolyte membrane fuel cell (PEMFC) as a main power source and batteries as a complementary source, for hybrid power sources for distributed generation system, particularly for future electric vehicle applications. The control, which takes into account the slow dynamics of a fuel cell (FC) in order to avoid fuel (hydrogen and air) starvation problems, is obviously simpler than state machines used for hybrid source control. The control strategy lies in using an FC for supplying energy to battery and load at the dc bus. The structure is an FC current, battery current, and battery state-of-charge (SOC) cascade control. To validate the proposed principle, a hardware system is realized by analogical circuits for the FC current loop and numerical calculation (dSPACE) for the battery current and SOC loops. Experimental results with small-scale devices (a 500 W PEM FC and 33 Ah, 48 V lead-acid battery bank) illustrate the excellent control scheme during motor drive cycles. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4358732&sortType%3Das [...] [article] Control algorithm of fuel cell and batteries for distributed generation system [texte imprimé] / Thounthong, P., Auteur ; Raël, S., Auteur ; Davat, B., Auteur . - 2008 . - pp. 148 - 155. Energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 23 N°1 (Mars 2008) . - pp. 148 - 155 Mots-clés : Distributed  power  generation;  electric  vehicles;  energy  storage;  hybrid  power  systems;  power  system  control;  proton  exchange  membrane  fuel  cells;  secondary  cells Résumé : This paper intends to propose a novel control algorithm for utilizing a polymer electrolyte membrane fuel cell (PEMFC) as a main power source and batteries as a complementary source, for hybrid power sources for distributed generation system, particularly for future electric vehicle applications. The control, which takes into account the slow dynamics of a fuel cell (FC) in order to avoid fuel (hydrogen and air) starvation problems, is obviously simpler than state machines used for hybrid source control. The control strategy lies in using an FC for supplying energy to battery and load at the dc bus. The structure is an FC current, battery current, and battery state-of-charge (SOC) cascade control. To validate the proposed principle, a hardware system is realized by analogical circuits for the FC current loop and numerical calculation (dSPACE) for the battery current and SOC loops. Experimental results with small-scale devices (a 500 W PEM FC and 33 Ah, 48 V lead-acid battery bank) illustrate the excellent control scheme during motor drive cycles. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4358732&sortType%3Das [...]