Multi-winding Flyback Type Snubber for 10kV IGCT with Reduced Voltage Stress on Recovery Diodes

Siamak Shirmohammadi; Yongsug Suh

doi:10.1109/ECCE.2018.8558290

Multi-winding Flyback Type Snubber for 10kV IGCT with Reduced Voltage Stress on Recovery Diodes

Siamak Shirmohammadi
, Yongsug Suh

Department of Electrical Engineering

Jeonbuk National University

Research output: Contribution to conference › Conference paper › peer-review

2 Scopus citations

Abstract

10kV IGCT has the potential to push wind turbine systems to a higher power and voltage rating. Converters employing IGCTs need snubber and OVP circuit to limit the rate of current rising and peak over voltage across IGCT during turn on and turn off state respectively. The conventional RCD snubber which is used in such power converter dissipates a significant amount of power. This paper proposes an enhanced scheme of flyback type snubber comprising flyback transformer with multi-winding secondary wound on a magnetic core. The flyback snubber not only meets all of the IGCTs characteristics during on and off-state but also significantly saves the power. Unlike primitive concept of flyback-type snubber, the new scheme has less voltage stress across diodes which are recovering stored energy of di/dt snubber into DClink capacitor. Simulation and experimental results of IGCT with conventional RCD and flyback type snubber turn out the benefit of contributed scheme.

Original language	English
Title of host publication	2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	964-971
Number of pages	8
ISBN (Electronic)	9781479973118
DOIs	https://doi.org/10.1109/ECCE.2018.8558290
State	Published - 2018.12.3
Event	10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States Duration: 2018.09.23 → 2018.09.27

Publication series

Name	2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Conference

Conference	10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Country/Territory	United States
City	Portland
Period	18.09.23 → 18.09.27

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

3L-NPC
Flyback
IGCT
Snubber
VSC
Wind turbine

Quacquarelli Symonds(QS) Subject Topics

Computer Science & Information Systems
Mathematics
Engineering - Electrical & Electronic
Engineering - Petroleum

Access to Document

10.1109/ECCE.2018.8558290

Cite this

Shirmohammadi, S., & Suh, Y. (2018). Multi-winding Flyback Type Snubber for 10kV IGCT with Reduced Voltage Stress on Recovery Diodes. In 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018 (pp. 964-971). Article 8558290 (2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2018.8558290

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title = "Multi-winding Flyback Type Snubber for 10kV IGCT with Reduced Voltage Stress on Recovery Diodes",

abstract = "10kV IGCT has the potential to push wind turbine systems to a higher power and voltage rating. Converters employing IGCTs need snubber and OVP circuit to limit the rate of current rising and peak over voltage across IGCT during turn on and turn off state respectively. The conventional RCD snubber which is used in such power converter dissipates a significant amount of power. This paper proposes an enhanced scheme of flyback type snubber comprising flyback transformer with multi-winding secondary wound on a magnetic core. The flyback snubber not only meets all of the IGCTs characteristics during on and off-state but also significantly saves the power. Unlike primitive concept of flyback-type snubber, the new scheme has less voltage stress across diodes which are recovering stored energy of di/dt snubber into DClink capacitor. Simulation and experimental results of IGCT with conventional RCD and flyback type snubber turn out the benefit of contributed scheme.",

keywords = "3L-NPC, Flyback, IGCT, Snubber, VSC, Wind turbine",

author = "Siamak Shirmohammadi and Yongsug Suh",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 ; Conference date: 23-09-2018 Through 27-09-2018",

year = "2018",

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doi = "10.1109/ECCE.2018.8558290",

language = "English",

series = "2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018",

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Shirmohammadi, S & Suh, Y 2018, Multi-winding Flyback Type Snubber for 10kV IGCT with Reduced Voltage Stress on Recovery Diodes. in 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018., 8558290, 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018, Institute of Electrical and Electronics Engineers Inc., pp. 964-971, 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018, Portland, United States, 18.09.23. https://doi.org/10.1109/ECCE.2018.8558290

Multi-winding Flyback Type Snubber for 10kV IGCT with Reduced Voltage Stress on Recovery Diodes. / Shirmohammadi, Siamak; Suh, Yongsug.
2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 964-971 8558290 (2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018).

Research output: Contribution to conference › Conference paper › peer-review

TY - GEN

T1 - Multi-winding Flyback Type Snubber for 10kV IGCT with Reduced Voltage Stress on Recovery Diodes

AU - Shirmohammadi, Siamak

AU - Suh, Yongsug

PY - 2018/12/3

Y1 - 2018/12/3

N2 - 10kV IGCT has the potential to push wind turbine systems to a higher power and voltage rating. Converters employing IGCTs need snubber and OVP circuit to limit the rate of current rising and peak over voltage across IGCT during turn on and turn off state respectively. The conventional RCD snubber which is used in such power converter dissipates a significant amount of power. This paper proposes an enhanced scheme of flyback type snubber comprising flyback transformer with multi-winding secondary wound on a magnetic core. The flyback snubber not only meets all of the IGCTs characteristics during on and off-state but also significantly saves the power. Unlike primitive concept of flyback-type snubber, the new scheme has less voltage stress across diodes which are recovering stored energy of di/dt snubber into DClink capacitor. Simulation and experimental results of IGCT with conventional RCD and flyback type snubber turn out the benefit of contributed scheme.

AB - 10kV IGCT has the potential to push wind turbine systems to a higher power and voltage rating. Converters employing IGCTs need snubber and OVP circuit to limit the rate of current rising and peak over voltage across IGCT during turn on and turn off state respectively. The conventional RCD snubber which is used in such power converter dissipates a significant amount of power. This paper proposes an enhanced scheme of flyback type snubber comprising flyback transformer with multi-winding secondary wound on a magnetic core. The flyback snubber not only meets all of the IGCTs characteristics during on and off-state but also significantly saves the power. Unlike primitive concept of flyback-type snubber, the new scheme has less voltage stress across diodes which are recovering stored energy of di/dt snubber into DClink capacitor. Simulation and experimental results of IGCT with conventional RCD and flyback type snubber turn out the benefit of contributed scheme.

KW - 3L-NPC

KW - Flyback

KW - IGCT

KW - Snubber

KW - VSC

KW - Wind turbine

UR - https://www.scopus.com/pages/publications/85060279298

U2 - 10.1109/ECCE.2018.8558290

DO - 10.1109/ECCE.2018.8558290

M3 - Conference paper

AN - SCOPUS:85060279298

T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

SP - 964

EP - 971

BT - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018

Y2 - 23 September 2018 through 27 September 2018

ER -

Multi-winding Flyback Type Snubber for 10kV IGCT with Reduced Voltage Stress on Recovery Diodes

Abstract

Publication series

Conference

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

Access to Document

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