Investigating the effect of snubber capacitor on high power IGBT turn-off

R. T. Naayagi; R. Shuttleworth; A. J. Forsyth

doi:10.1109/ICEES.2011.5725301

Investigating the effect of snubber capacitor on high power IGBT turn-off

R. T. Naayagi, R. Shuttleworth, A. J. Forsyth

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

A 20kW bidirectional dual active bridge DC-DC converter prototype is designed and built for aerospace energy storage applications. The converter employs high power IGBT modules on the high voltage and low voltage sides. This paper presents the theoretical analysis and experimental results of turn-off performance of those high power IGBTs with capacitive snubbers. The turn-off performance of the 1200V, 300A ultrafast IGBT and 600V, 760A trench IGBT has been analyzed with and without a snubber capacitor. The influence of variation in snubber capacitor and variation in gate resistance on the IGBT performance is discussed. This gives a better understanding of IGBT characteristics during the turn-off transient. Experimental results show that the snubber capacitor reduces the voltage stress and switching losses significantly during turn-off. The direct mount snubber outperforms the wire-ended snubber for the same value of capacitance; hence they are suggested for high frequency, high power applications. © 2011 IEEE.

Original language	English
Title of host publication	2011 1st International Conference on Electrical Energy Systems, ICEES 2011\|Int. Conf. Electr. Energy Syst., ICEES
Pages	50-55
Number of pages	5
DOIs	https://doi.org/10.1109/ICEES.2011.5725301
Publication status	Published - 2011
Event	2011 1st International Conference on Electrical Energy Systems, ICEES 2011 - Chennai, Tamilnadu Duration: 1 Jul 2011 → …

Conference

Conference	2011 1st International Conference on Electrical Energy Systems, ICEES 2011
City	Chennai, Tamilnadu
Period	1/07/11 → …

Keywords

Direct mount snubber
Gate resitance
High power IGBT
Snubber capacitor
Turn-off loss

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10.1109/ICEES.2011.5725301

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title = "Investigating the effect of snubber capacitor on high power IGBT turn-off",

abstract = "A 20kW bidirectional dual active bridge DC-DC converter prototype is designed and built for aerospace energy storage applications. The converter employs high power IGBT modules on the high voltage and low voltage sides. This paper presents the theoretical analysis and experimental results of turn-off performance of those high power IGBTs with capacitive snubbers. The turn-off performance of the 1200V, 300A ultrafast IGBT and 600V, 760A trench IGBT has been analyzed with and without a snubber capacitor. The influence of variation in snubber capacitor and variation in gate resistance on the IGBT performance is discussed. This gives a better understanding of IGBT characteristics during the turn-off transient. Experimental results show that the snubber capacitor reduces the voltage stress and switching losses significantly during turn-off. The direct mount snubber outperforms the wire-ended snubber for the same value of capacitance; hence they are suggested for high frequency, high power applications. {\textcopyright} 2011 IEEE.",

keywords = "Direct mount snubber, Gate resitance, High power IGBT, Snubber capacitor, Turn-off loss",

author = "Naayagi, {R. T.} and R. Shuttleworth and Forsyth, {A. J.}",

year = "2011",

doi = "10.1109/ICEES.2011.5725301",

language = "English",

isbn = "9781424497324",

pages = "50--55",

booktitle = "2011 1st International Conference on Electrical Energy Systems, ICEES 2011|Int. Conf. Electr. Energy Syst., ICEES",

note = "2011 1st International Conference on Electrical Energy Systems, ICEES 2011 ; Conference date: 01-07-2011",

}

Naayagi, RT, Shuttleworth, R & Forsyth, AJ 2011, Investigating the effect of snubber capacitor on high power IGBT turn-off. in 2011 1st International Conference on Electrical Energy Systems, ICEES 2011|Int. Conf. Electr. Energy Syst., ICEES. pp. 50-55, 2011 1st International Conference on Electrical Energy Systems, ICEES 2011, Chennai, Tamilnadu, 1/07/11. https://doi.org/10.1109/ICEES.2011.5725301

TY - GEN

T1 - Investigating the effect of snubber capacitor on high power IGBT turn-off

AU - Naayagi, R. T.

AU - Shuttleworth, R.

AU - Forsyth, A. J.

PY - 2011

Y1 - 2011

N2 - A 20kW bidirectional dual active bridge DC-DC converter prototype is designed and built for aerospace energy storage applications. The converter employs high power IGBT modules on the high voltage and low voltage sides. This paper presents the theoretical analysis and experimental results of turn-off performance of those high power IGBTs with capacitive snubbers. The turn-off performance of the 1200V, 300A ultrafast IGBT and 600V, 760A trench IGBT has been analyzed with and without a snubber capacitor. The influence of variation in snubber capacitor and variation in gate resistance on the IGBT performance is discussed. This gives a better understanding of IGBT characteristics during the turn-off transient. Experimental results show that the snubber capacitor reduces the voltage stress and switching losses significantly during turn-off. The direct mount snubber outperforms the wire-ended snubber for the same value of capacitance; hence they are suggested for high frequency, high power applications. © 2011 IEEE.

AB - A 20kW bidirectional dual active bridge DC-DC converter prototype is designed and built for aerospace energy storage applications. The converter employs high power IGBT modules on the high voltage and low voltage sides. This paper presents the theoretical analysis and experimental results of turn-off performance of those high power IGBTs with capacitive snubbers. The turn-off performance of the 1200V, 300A ultrafast IGBT and 600V, 760A trench IGBT has been analyzed with and without a snubber capacitor. The influence of variation in snubber capacitor and variation in gate resistance on the IGBT performance is discussed. This gives a better understanding of IGBT characteristics during the turn-off transient. Experimental results show that the snubber capacitor reduces the voltage stress and switching losses significantly during turn-off. The direct mount snubber outperforms the wire-ended snubber for the same value of capacitance; hence they are suggested for high frequency, high power applications. © 2011 IEEE.

KW - Direct mount snubber

KW - Gate resitance

KW - High power IGBT

KW - Snubber capacitor

KW - Turn-off loss

U2 - 10.1109/ICEES.2011.5725301

DO - 10.1109/ICEES.2011.5725301

M3 - Conference contribution

SN - 9781424497324

SP - 50

EP - 55

BT - 2011 1st International Conference on Electrical Energy Systems, ICEES 2011|Int. Conf. Electr. Energy Syst., ICEES

T2 - 2011 1st International Conference on Electrical Energy Systems, ICEES 2011

Y2 - 1 July 2011

ER -

Investigating the effect of snubber capacitor on high power IGBT turn-off

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Keywords

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