Mostrar el registro sencillo del ítem

Elimination of the transfer time effects in line-interactive and passive standby UPSs by means of a small-size inverter

dc.contributor.authorArias Pérez de Azpeitia, Manuel 
dc.contributor.authorHernando Álvarez, Marta María 
dc.contributor.authorGonzález Lamar, Diego 
dc.contributor.authorFernández Linera, Francisco Manuel 
dc.contributor.authorBalocco, Didier
dc.contributor.authorDiallo, Almadidi
dc.contributor.authorSebastián Zúñiga, Francisco Javier 
dc.date.accessioned2013-11-15T09:17:45Z
dc.date.available2013-11-15T09:17:45Z
dc.date.issued2012
dc.identifier.citationIEEE Transactions on Power Electronics, 27(3), p. 1468-1478 (2012); doi:10.1109/TPEL.2011.2163421
dc.identifier.issn0885-8993
dc.identifier.urihttp://hdl.handle.net/10651/19548
dc.description.abstractThe main drawback of line-interactive and passive standby uninterruptible power supplies (UPS) is the transfer time when changing from normal mode of operation to battery mode of operation. During this time, the critical loads protected by the UPS are under the influence of the grid disturbance that forced the mode change. On the other hand, equipment protected by a double-conversion UPS is never affected by disturbance in the mains. Unfortunately, the efficiency of this topology is lower and its size and cost are considerably higher. Hence, the elimination of the transfer process between modes in line-interactive and passive standby UPSs would make them more competitive than double-conversion UPSs in many situations. In this paper, a method for eliminating the transfer time is proposed. It is based on a half-bridge inverter with a hysteretic controller whose output voltage is only applied to the load during the transfer time. Considering the random nature of the grid failures and the short duration of the transfer time, the design and selection of the components are nothing but standard. This also leads to a nonstandard hysteretic controller that needs to be fully analyzed. Experimental results are provided for a 750-W line-interactive UPS whose transfer time of 4 ms was eliminated by the proposed systemen
dc.description.sponsorshipThis work has been supported by projects MICINN-10-CSD2009-00046 and MICINN10-DPI2010- 21110-C02-0
dc.format.extentp. 1468-1478spa
dc.language.isoeng
dc.publisherIEEE
dc.relation.ispartofIEEE Transactions on Power Electronics, 27(3)spa
dc.rights© 2012 IEEE
dc.subjectTerms—Line-Interactive UPSs
dc.subjectHysteretic controller
dc.subjectTransfer time in UPSs
dc.titleElimination of the transfer time effects in line-interactive and passive standby UPSs by means of a small-size inverterspa
dc.typejournal article
dc.identifier.doi10.1109/TPEL.2011.2163421
dc.relation.publisherversionhttp://dx.doi.org/10.1109/TPEL.2011.2163421
dc.rights.accessRightsopen access
dc.type.hasVersionAM


Ficheros en el ítem

untranslated

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem