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A new MPPT method for low-power solar energy harvesting / Lopez-Lapena, Oscar in IEEE transactions on industrial electronics, Vol. 57 N° 9 (Septembre 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 9 (Septembre 2010) . - pp. 3129 - 3138 Titre : A new MPPT method for low-power solar energy harvesting Type de document : texte imprimé Auteurs : Lopez-Lapena, Oscar, Auteur ; Penella, Maria Teresa, Auteur ; Gasulla, Manel, Auteur Année de publication : 2011 Article en page(s) : pp. 3129 - 3138 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Energy  harvesting  Maximum  power  point  tracking  (MPPT)  Solar  cells  Wireless  sensor  networks  (WSNs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes a new maximum-power-point-tracking (MPPT) method focused on low-power (<; 1 W) photovoltaic (PV) panels. The static and dynamic performance is theoretically analyzed, and design criteria are provided. A prototype was implemented with a 500-mW PV panel, a commercial boost converter, and low-power components for the MPPT controller. Laboratory measurements were performed to assess the effectiveness of the proposed method. Tracking efficiency was higher than 99.6%. The overall efficiency was higher than 92% for a PV panel power higher than 100 mW. This is, in part, feasible due to the low power consumption of the MPPT controller, which was kept lower than 350 μW. The time response of the tracking circuit was tested to be around 1 s. Field measurements showed energy gains higher than 10.3% with respect to a direct-coupled solution for an ambient temperature of 26°C. Higher gains are expected for lower temperatures. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5345741 [article] A new MPPT method for low-power solar energy harvesting [texte imprimé] / Lopez-Lapena, Oscar, Auteur ; Penella, Maria Teresa, Auteur ; Gasulla, Manel, Auteur . - 2011 . - pp. 3129 - 3138. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 9 (Septembre 2010) . - pp. 3129 - 3138 Mots-clés : Energy  harvesting  Maximum  power  point  tracking  (MPPT)  Solar  cells  Wireless  sensor  networks  (WSNs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes a new maximum-power-point-tracking (MPPT) method focused on low-power (<; 1 W) photovoltaic (PV) panels. The static and dynamic performance is theoretically analyzed, and design criteria are provided. A prototype was implemented with a 500-mW PV panel, a commercial boost converter, and low-power components for the MPPT controller. Laboratory measurements were performed to assess the effectiveness of the proposed method. Tracking efficiency was higher than 99.6%. The overall efficiency was higher than 92% for a PV panel power higher than 100 mW. This is, in part, feasible due to the low power consumption of the MPPT controller, which was kept lower than 350 μW. The time response of the tracking circuit was tested to be around 1 s. Field measurements showed energy gains higher than 10.3% with respect to a direct-coupled solution for an ambient temperature of 26°C. Higher gains are expected for lower temperatures. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5345741