ArchivIA Università degli Studi di Catania

ArchivIA - Archivio istituzionale dell'Universita' di Catania >
Tesi >
Tesi di dottorato >
Area 09 - Ingegneria industriale e dell'informazione >

Utilizza questo identificativo per citare o creare un link a questo documento:

Data: 10-feb-2015
Autori: Signorello, Concetta
Titolo: Reduction of Switching Losses in IGBT Power Modules
Abstract: The purpose of this work is to study in deep the transition phenomena of IGBTs in order to evaluate different optimization strategies for losses reduction and propose a novel technique. In power applications a particular attention must be taken to such phenomena as commutation losses, overcurrents during the turn-ON and overvoltage at the turn-OFF of the devices. These phenomena are connected to non ideal behavior of real devices and stray circuit parameters. Steep profiles of current lead to large ElectroMagnetic Interference (EMI) and overvoltages, while rapid variations of the voltage can produce phenomena of "latch-up" in single IGBT or unwanted commutations. On the other hand, slow commutations are characterized by low values of dv/dt and di/dt, causing excessive losses in those power application during commutations. Therefore, it is essential to face the issue with opposite requirements at the design stage obtaining optimal tradeoff.
InArea 09 - Ingegneria industriale e dell'informazione

Full text:

File Descrizione DimensioniFormatoConsultabilità
SGNCCT84H70C351W-TESI Concetta Signorello.pdfTESI_Signorello Concetta - "Reduction of Switching Losses in IGBT Power Modules"7,61 MBAdobe PDFVisualizza/apri

Tutti i documenti archiviati in ArchivIA sono protetti da copyright. Tutti i diritti riservati.

Segnala questo record su




Stumble it!



  Browser supportati Firefox 3+, Internet Explorer 7+, Google Chrome, Safari

ICT Support, development & maintenance are provided by the AePIC team @ CILEA. Powered on DSpace Software.