Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW wind turbine systems

Siamak Shirmohammadi; Yongsug Suh

doi:10.1109/EPE.2015.7309306

Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW wind turbine systems

Siamak Shirmohammadi
, Yongsug Suh

Department of Electrical Engineering

Jeonbuk National University

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

6 Scopus citations

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	2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9789075815221
DOIs	https://doi.org/10.1109/EPE.2015.7309306
State	Published - 2015.10.27
Event	17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 - Geneva, Switzerland Duration: 2015.09.8 → 2015.09.10

Publication series

Name	2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015

Conference

Conference	17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015
Country/Territory	Switzerland
City	Geneva
Period	15.09.8 → 15.09.10

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

3L-NPC
Flyback
IGCT
Medium voltage
Snubber
VSC
Wind turbine

Quacquarelli Symonds(QS) Subject Topics

Engineering - Electrical & Electronic
Engineering - Petroleum

Access to Document

10.1109/EPE.2015.7309306

Cite this

Shirmohammadi, S., & Suh, Y. (2015). Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW wind turbine systems. In 2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 Article 7309306 (2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EPE.2015.7309306

Shirmohammadi, Siamak ; Suh, Yongsug. / Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW wind turbine systems. 2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015. Institute of Electrical and Electronics Engineers Inc., 2015. (2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015).

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title = "Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW 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, IGCT, Medium voltage, Snubber, VSC, Wind turbine",

author = "Siamak Shirmohammadi and Yongsug Suh",

note = "Publisher Copyright: {\textcopyright} 2015 EPE Association and IEEE.; 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 ; Conference date: 08-09-2015 Through 10-09-2015",

year = "2015",

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doi = "10.1109/EPE.2015.7309306",

language = "English",

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Shirmohammadi, S & Suh, Y 2015, Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW wind turbine systems. in 2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015., 7309306, 2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015, Institute of Electrical and Electronics Engineers Inc., 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015, Geneva, Switzerland, 15.09.8. https://doi.org/10.1109/EPE.2015.7309306

Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW wind turbine systems. / Shirmohammadi, Siamak; Suh, Yongsug.
2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7309306 (2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015).

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

TY - GEN

T1 - Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW wind turbine systems

AU - Shirmohammadi, Siamak

AU - Suh, Yongsug

PY - 2015/10/27

Y1 - 2015/10/27

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

KW - IGCT

KW - Medium voltage

KW - Snubber

KW - VSC

KW - Wind turbine

UR - https://www.scopus.com/pages/publications/84965064767

U2 - 10.1109/EPE.2015.7309306

DO - 10.1109/EPE.2015.7309306

M3 - Conference paper

AN - SCOPUS:84965064767

T3 - 2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015

BT - 2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015

Y2 - 8 September 2015 through 10 September 2015

ER -

Shirmohammadi S, Suh Y. Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW wind turbine systems. In 2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7309306. (2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015). doi: 10.1109/EPE.2015.7309306

Low dissipative snubber using flyback type transformer for 10 kV IGCT in 7 MW wind turbine systems

Abstract

Publication series

Conference

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

Access to Document

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