Non-isolated interleaved high step-up converter with reduced voltage multiplier stages and a regenerative turn-off snubber

Kazuhiro Umetani, Eiji Hiraki, Masayoshi Yamamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper proposes a novel non-isolated high step-up converter suitable for miniaturization by high frequency design. High step-up converters with voltage multipliers are promising for high frequency design because many of them can be free from coupled inductors or transformers, which may lower the voltage gain due to the leakage inductance or may cause significant AC conduction loss in the primary winding. However, two issues can still hinder further miniaturization. One is that many multiplier stages may be needed to achieve extremely high voltage gain. The other is that high switching frequency may be restricted by severe turn-off voltage surge caused by high speed switching. The proposed converter addresses the former by applying a recently reported technique to a non-isolated boost converter. Additionally, the converter addresses the latter by proposing a simple passive regenerative turn-off snubber implementable only by two diodes and a capacitor. Experiments verified that the proposed converter achieves high voltage gain with fewer voltage multiplier stages compared to prior non-isolated high step-up converters. Additionally, the snubber successfully reduced the turn-off surge into half approximately without apparent deterioration of the efficiency.

Original languageEnglish
Title of host publication2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages125-132
Number of pages8
ISBN (Print)9781467371506
DOIs
Publication statusPublished - Oct 27 2015
Event7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada
Duration: Sep 20 2015Sep 24 2015

Other

Other7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
CountryCanada
CityMontreal
Period9/20/159/24/15

Fingerprint

Electric potential
Switching frequency
Inductance
Deterioration
Diodes
Capacitors
Experiments

Keywords

  • high step-up
  • interleaved boost converter
  • turn-off snubber
  • voltage multiplier
  • voltage surge

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Umetani, K., Hiraki, E., & Yamamoto, M. (2015). Non-isolated interleaved high step-up converter with reduced voltage multiplier stages and a regenerative turn-off snubber. In 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015 (pp. 125-132). [7309679] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2015.7309679

Non-isolated interleaved high step-up converter with reduced voltage multiplier stages and a regenerative turn-off snubber. / Umetani, Kazuhiro; Hiraki, Eiji; Yamamoto, Masayoshi.

2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 125-132 7309679.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Umetani, K, Hiraki, E & Yamamoto, M 2015, Non-isolated interleaved high step-up converter with reduced voltage multiplier stages and a regenerative turn-off snubber. in 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015., 7309679, Institute of Electrical and Electronics Engineers Inc., pp. 125-132, 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015, Montreal, Canada, 9/20/15. https://doi.org/10.1109/ECCE.2015.7309679
Umetani K, Hiraki E, Yamamoto M. Non-isolated interleaved high step-up converter with reduced voltage multiplier stages and a regenerative turn-off snubber. In 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc. 2015. p. 125-132. 7309679 https://doi.org/10.1109/ECCE.2015.7309679
Umetani, Kazuhiro ; Hiraki, Eiji ; Yamamoto, Masayoshi. / Non-isolated interleaved high step-up converter with reduced voltage multiplier stages and a regenerative turn-off snubber. 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 125-132
@inproceedings{e7841e8c850f47d4ab9f53d1ade3c2b9,
title = "Non-isolated interleaved high step-up converter with reduced voltage multiplier stages and a regenerative turn-off snubber",
abstract = "This paper proposes a novel non-isolated high step-up converter suitable for miniaturization by high frequency design. High step-up converters with voltage multipliers are promising for high frequency design because many of them can be free from coupled inductors or transformers, which may lower the voltage gain due to the leakage inductance or may cause significant AC conduction loss in the primary winding. However, two issues can still hinder further miniaturization. One is that many multiplier stages may be needed to achieve extremely high voltage gain. The other is that high switching frequency may be restricted by severe turn-off voltage surge caused by high speed switching. The proposed converter addresses the former by applying a recently reported technique to a non-isolated boost converter. Additionally, the converter addresses the latter by proposing a simple passive regenerative turn-off snubber implementable only by two diodes and a capacitor. Experiments verified that the proposed converter achieves high voltage gain with fewer voltage multiplier stages compared to prior non-isolated high step-up converters. Additionally, the snubber successfully reduced the turn-off surge into half approximately without apparent deterioration of the efficiency.",
keywords = "high step-up, interleaved boost converter, turn-off snubber, voltage multiplier, voltage surge",
author = "Kazuhiro Umetani and Eiji Hiraki and Masayoshi Yamamoto",
year = "2015",
month = "10",
day = "27",
doi = "10.1109/ECCE.2015.7309679",
language = "English",
isbn = "9781467371506",
pages = "125--132",
booktitle = "2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - GEN

T1 - Non-isolated interleaved high step-up converter with reduced voltage multiplier stages and a regenerative turn-off snubber

AU - Umetani, Kazuhiro

AU - Hiraki, Eiji

AU - Yamamoto, Masayoshi

PY - 2015/10/27

Y1 - 2015/10/27

N2 - This paper proposes a novel non-isolated high step-up converter suitable for miniaturization by high frequency design. High step-up converters with voltage multipliers are promising for high frequency design because many of them can be free from coupled inductors or transformers, which may lower the voltage gain due to the leakage inductance or may cause significant AC conduction loss in the primary winding. However, two issues can still hinder further miniaturization. One is that many multiplier stages may be needed to achieve extremely high voltage gain. The other is that high switching frequency may be restricted by severe turn-off voltage surge caused by high speed switching. The proposed converter addresses the former by applying a recently reported technique to a non-isolated boost converter. Additionally, the converter addresses the latter by proposing a simple passive regenerative turn-off snubber implementable only by two diodes and a capacitor. Experiments verified that the proposed converter achieves high voltage gain with fewer voltage multiplier stages compared to prior non-isolated high step-up converters. Additionally, the snubber successfully reduced the turn-off surge into half approximately without apparent deterioration of the efficiency.

AB - This paper proposes a novel non-isolated high step-up converter suitable for miniaturization by high frequency design. High step-up converters with voltage multipliers are promising for high frequency design because many of them can be free from coupled inductors or transformers, which may lower the voltage gain due to the leakage inductance or may cause significant AC conduction loss in the primary winding. However, two issues can still hinder further miniaturization. One is that many multiplier stages may be needed to achieve extremely high voltage gain. The other is that high switching frequency may be restricted by severe turn-off voltage surge caused by high speed switching. The proposed converter addresses the former by applying a recently reported technique to a non-isolated boost converter. Additionally, the converter addresses the latter by proposing a simple passive regenerative turn-off snubber implementable only by two diodes and a capacitor. Experiments verified that the proposed converter achieves high voltage gain with fewer voltage multiplier stages compared to prior non-isolated high step-up converters. Additionally, the snubber successfully reduced the turn-off surge into half approximately without apparent deterioration of the efficiency.

KW - high step-up

KW - interleaved boost converter

KW - turn-off snubber

KW - voltage multiplier

KW - voltage surge

UR - http://www.scopus.com/inward/record.url?scp=84963547312&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84963547312&partnerID=8YFLogxK

U2 - 10.1109/ECCE.2015.7309679

DO - 10.1109/ECCE.2015.7309679

M3 - Conference contribution

AN - SCOPUS:84963547312

SN - 9781467371506

SP - 125

EP - 132

BT - 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

PB - Institute of Electrical and Electronics Engineers Inc.

ER -