An Energy Recovery Scheme for RCD Snubber in the Series Configuration of IGBTs

Mostafa Zarghani*, Saeed Peyghami, Francesco Iannuzzo, Frede Blaabjerg, Shahriyar Kaboli

*Kontaktforfatter

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1 Citationer (Scopus)
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Abstract

This paper presents an energy recovery scheme for traditional Resistor-Capacitor-Diode (RCD) snubber in the series-connected configuration of IGBTs. In the series configuration of IGBTs, an RCD snubber is used in parallel to each IGBT to provide a safe operating condition for the IGBTs. In the proposed scheme, by using interconnection diodes, the capacitors of the snubbers are parallelized in the on-state of the IGBTs. Thus, the stored energies in the snubber capacitors are lumped together and transferred to the DC link by using a transformer and a resonant circuit. By using the proposed method, the capacitor of the snubber can have a higher value. A higher value of the snubber capacitance improves voltage sharing of the IGBTs and reduces the turn-off switching power losses of the IGBTs. The proposed scheme is simulated for a case study using PSPICE software and tested through an experimental setup. Simulation and experimental results imply the proper performance of the proposed scheme.
OriginalsprogEngelsk
Titel2021 IEEE Energy Conversion Congress and Exposition (ECCE)
Publikationsdato2021
Sider5183-5189
ISBN (Trykt)978-1-7281-6128-0
ISBN (Elektronisk)978-1-7281-5135-9
DOI
StatusUdgivet - 2021
Begivenhed2021 IEEE Energy Conversion Congress and Exposition (ECCE) - Vancouver, BC, Canada
Varighed: 10 okt. 202114 okt. 2021

Konference

Konference2021 IEEE Energy Conversion Congress and Exposition (ECCE)
LokationVancouver, BC, Canada
Periode10/10/202114/10/2021
NavnIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

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