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Snubber Circuits for an Auxiliary Resonant Commutated Pole Converter with Auxiliary Thyristors
KTH, School of Electrical Engineering (EES), Electric Power and Energy Systems.
2017 (English)In: 2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE EUROPE), IEEE , 2017Conference paper (Refereed)
Abstract [en]

In this work, four different snubber solutions for an Auxiliary Resonant Commutated Pole (ARCP) converter with an auxiliary thyristor are evaluated. The first two solutions are an RC snubber and a variation thereoff where the RC snubber losses are reduced by employing diodes for limiting the voltage overshoot. Two other concepts are a novel lossless dV/dt clamp snubber circuit and a low-loss RC snubber circuit, which has good fault tolerance and improved efficiency. This solution is implemented using SiC Merged P-i-N Schottky (MPS) diodes, which enables a cost-effective implementation with a high surge current capability on a small total chip area. Measurement results confirm that the snubbers limit the voltage overshoot and that the efficiency of the proposed low-loss RC snubber circuit is a substantial improvement over a conventional RC snubber.

Place, publisher, year, edition, pages
IEEE , 2017.
Series
European Conference on Power Electronics and Applications, ISSN 2325-0313
Keyword [en]
Voltage Source Converter (VSC), IGCT, Thyristor, Soft switching, Reverse recovery
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-220862ISI: 000418374408012ISBN: 978-9-0758-1527-6 OAI: oai:DiVA.org:kth-220862DiVA, id: diva2:1171769
Conference
19th European Conference on Power Electronics and Applications (EPE ECCE Europe), SEP 11-14, 2017, Warsaw, Poland
Funder
SweGRIDS - Swedish Centre for Smart Grids and Energy Storage
Note

QC 20180108

Available from: 2018-01-08 Created: 2018-01-08 Last updated: 2018-01-08Bibliographically approved

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Heuvelmans, Matthijs

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf