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Control of a single-phase cascaded H-bridge multilevel inverter for grid-connected photovoltaic systems / Villanueva, Elena in IEEE transactions on industrial electronics, Vol. 56 N° 11 (Novembre 2009) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 56 N° 11 (Novembre 2009) . - pp. 4399 - 4406 Titre : Control of a single-phase cascaded H-bridge multilevel inverter for grid-connected photovoltaic systems Type de document : texte imprimé Auteurs : Villanueva, Elena, Auteur ; Correa, Pablo, Auteur ; Rodriguez, José, Auteur Article en page(s) : pp. 4399 - 4406 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Multilevel  inverters  Photovoltaic  (PV)  power  systems  Power  conversion Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a single-phase cascaded H-bridge converter for a grid-connected photovoltaic (PV) application. The multilevel topology consists of several H-bridge cells connected in series, each one connected to a string of PV modules. The adopted control scheme permits the independent control of each dc-link voltage, enabling, in this way, the tracking of the maximum power point for each string of PV panels. Additionally, low-ripple sinusoidal-current waveforms are generated with almost unity power factor. The topology offers other advantages such as the operation at lower switching frequency or lower current ripple compared to standard two-level topologies. Simulation and experimental results are presented for different operating conditions. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226596 [article] Control of a single-phase cascaded H-bridge multilevel inverter for grid-connected photovoltaic systems [texte imprimé] / Villanueva, Elena, Auteur ; Correa, Pablo, Auteur ; Rodriguez, José, Auteur . - pp. 4399 - 4406. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 11 (Novembre 2009) . - pp. 4399 - 4406 Mots-clés : Multilevel  inverters  Photovoltaic  (PV)  power  systems  Power  conversion Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a single-phase cascaded H-bridge converter for a grid-connected photovoltaic (PV) application. The multilevel topology consists of several H-bridge cells connected in series, each one connected to a string of PV modules. The adopted control scheme permits the independent control of each dc-link voltage, enabling, in this way, the tracking of the maximum power point for each string of PV panels. Additionally, low-ripple sinusoidal-current waveforms are generated with almost unity power factor. The topology offers other advantages such as the operation at lower switching frequency or lower current ripple compared to standard two-level topologies. Simulation and experimental results are presented for different operating conditions. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226596