Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems

Siamak Shirmohammadi; Kihyun Lee; Yongsug Suh

doi:10.1109/ICPE.2015.7167773

Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems

Siamak Shirmohammadi
, Kihyun Lee
, Yongsug Suh

Department of Electrical Engineering

Jeonbuk National University

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

Abstract

10kV IGCT has been recently developed and has the potential to push wind turbine systems to higher power and voltage rating. Converters employing IGCTs need snubber and OVP circuit to limit the rate of rise of current and peak over voltage across IGCT during turn on and off state respectively. The conventional RCD snubber which is used in such power converter dissipates a significant amount of power. In order to reduce the amount of energy lost by conventional RCD snubber, this paper proposes a flyback-type snubber circuit that not only meets all of the IGCTs characteristics during on and off-state but also significantly saves the power loss. Loss analysis of conventional di/dt snubber and OVP circuit is performed for the 3-level NPC type back-to-back VSC supplied from grid voltage of 6.9kV. In comparison with the conventional snubber, flyback type snubber has a fewer number of components and improved efficiency leading to a reliable and efficient wind turbine systems.

Original language	English
Title of host publication	9th International Conference on Power Electronics - ECCE Asia
Subtitle of host publication	"Green World with Power Electronics", ICPE 2015-ECCE Asia
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	107-114
Number of pages	8
ISBN (Electronic)	9788957082546
DOIs	https://doi.org/10.1109/ICPE.2015.7167773
State	Published - 2015.07.27
Event	9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia - Seoul, Korea, Republic of Duration: 2015.06.1 → 2015.06.5

Publication series

Name	9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia

Conference

Conference	9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia
Country/Territory	Korea, Republic of
City	Seoul
Period	15.06.1 → 15.06.5

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

3L-NPC
Flyback-type snubber
IGCT
Medium voltage
VSC
Wind turbine

Quacquarelli Symonds(QS) Subject Topics

Engineering - Electrical & Electronic
Engineering - Petroleum

Access to Document

10.1109/ICPE.2015.7167773

Cite this

Shirmohammadi, S., Lee, K., & Suh, Y. (2015). Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems. In 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia (pp. 107-114). Article 7167773 (9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICPE.2015.7167773

Shirmohammadi, Siamak ; Lee, Kihyun ; Suh, Yongsug. / Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems. 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 107-114 (9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia).

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title = "Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems",

abstract = "10kV IGCT has been recently developed and has the potential to push wind turbine systems to higher power and voltage rating. Converters employing IGCTs need snubber and OVP circuit to limit the rate of rise of current and peak over voltage across IGCT during turn on and off state respectively. The conventional RCD snubber which is used in such power converter dissipates a significant amount of power. In order to reduce the amount of energy lost by conventional RCD snubber, this paper proposes a flyback-type snubber circuit that not only meets all of the IGCTs characteristics during on and off-state but also significantly saves the power loss. Loss analysis of conventional di/dt snubber and OVP circuit is performed for the 3-level NPC type back-to-back VSC supplied from grid voltage of 6.9kV. In comparison with the conventional snubber, flyback type snubber has a fewer number of components and improved efficiency leading to a reliable and efficient wind turbine systems.",

keywords = "3L-NPC, Flyback-type snubber, IGCT, Medium voltage, VSC, Wind turbine",

author = "Siamak Shirmohammadi and Kihyun Lee and Yongsug Suh",

note = "Publisher Copyright: {\textcopyright} 2015 Korean Institute of Power Electronics.; 9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia ; Conference date: 01-06-2015 Through 05-06-2015",

year = "2015",

month = jul,

day = "27",

doi = "10.1109/ICPE.2015.7167773",

language = "English",

series = "9th International Conference on Power Electronics - ECCE Asia: {"}Green World with Power Electronics{"}, ICPE 2015-ECCE Asia",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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}

Shirmohammadi, S, Lee, K & Suh, Y 2015, Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems. in 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia., 7167773, 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia, Institute of Electrical and Electronics Engineers Inc., pp. 107-114, 9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia, Seoul, Korea, Republic of, 15.06.1. https://doi.org/10.1109/ICPE.2015.7167773

Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems. / Shirmohammadi, Siamak; Lee, Kihyun; Suh, Yongsug.
9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2015. p. 107-114 7167773 (9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia).

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

TY - GEN

T1 - Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems

AU - Shirmohammadi, Siamak

AU - Lee, Kihyun

AU - Suh, Yongsug

PY - 2015/7/27

Y1 - 2015/7/27

N2 - 10kV IGCT has been recently developed and has the potential to push wind turbine systems to higher power and voltage rating. Converters employing IGCTs need snubber and OVP circuit to limit the rate of rise of current and peak over voltage across IGCT during turn on and off state respectively. The conventional RCD snubber which is used in such power converter dissipates a significant amount of power. In order to reduce the amount of energy lost by conventional RCD snubber, this paper proposes a flyback-type snubber circuit that not only meets all of the IGCTs characteristics during on and off-state but also significantly saves the power loss. Loss analysis of conventional di/dt snubber and OVP circuit is performed for the 3-level NPC type back-to-back VSC supplied from grid voltage of 6.9kV. In comparison with the conventional snubber, flyback type snubber has a fewer number of components and improved efficiency leading to a reliable and efficient wind turbine systems.

AB - 10kV IGCT has been recently developed and has the potential to push wind turbine systems to higher power and voltage rating. Converters employing IGCTs need snubber and OVP circuit to limit the rate of rise of current and peak over voltage across IGCT during turn on and off state respectively. The conventional RCD snubber which is used in such power converter dissipates a significant amount of power. In order to reduce the amount of energy lost by conventional RCD snubber, this paper proposes a flyback-type snubber circuit that not only meets all of the IGCTs characteristics during on and off-state but also significantly saves the power loss. Loss analysis of conventional di/dt snubber and OVP circuit is performed for the 3-level NPC type back-to-back VSC supplied from grid voltage of 6.9kV. In comparison with the conventional snubber, flyback type snubber has a fewer number of components and improved efficiency leading to a reliable and efficient wind turbine systems.

KW - 3L-NPC

KW - Flyback-type snubber

KW - IGCT

KW - Medium voltage

KW - VSC

KW - Wind turbine

UR - https://www.scopus.com/pages/publications/84961962683

U2 - 10.1109/ICPE.2015.7167773

DO - 10.1109/ICPE.2015.7167773

M3 - Conference paper

AN - SCOPUS:84961962683

T3 - 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia

SP - 107

EP - 114

BT - 9th International Conference on Power Electronics - ECCE Asia

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia

Y2 - 1 June 2015 through 5 June 2015

ER -

Shirmohammadi S, Lee K, Suh Y. Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems. In 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia. Institute of Electrical and Electronics Engineers Inc. 2015. p. 107-114. 7167773. (9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia). doi: 10.1109/ICPE.2015.7167773

Energy recovery flyback type snubber for 10kV IGCT in 7MW wind turbine systems

Abstract

Publication series

Conference

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

Access to Document

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