Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system

Ui Min Choi; Ionut Vernica; Frede Blaabjerg

doi:10.1109/APEC.2018.8341008

Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system

Ui Min Choi
, Ionut Vernica
, Frede Blaabjerg

Media IT Engineering Program

Aalborg University

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

5 Scopus citations

Abstract

An IGBT module has typically multiple power devices for some technical and cost advantages. This kind of configurations could have an asymmetric layout, which may lead to different thermal loadings and thereby lifetime difference of the power devices. Therefore, both the power rating and lifetime of inverters are limited by the most stressed devices. However, generally common data is provided for all devices and this may cause improper design of the inverters in terms of power rating and lifetime. In this paper, the effect of an asymmetric layout of IGBT modules on the reliability of power inverters is studied based on a 3-phase motor drive application with a 600 V 30 A, 3-phase transfer molded IGBT module. The thermal impedances of 6 IGBTs are investigated and its effect on the thermal loadings of power devices is studied under the given mission profile. Finally, their lifetimes are estimated and compared.

Original language	English
Title of host publication	APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	193-197
Number of pages	5
ISBN (Electronic)	9781538611807
DOIs	https://doi.org/10.1109/APEC.2018.8341008
State	Published - 18 Apr 2018
Event	33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018 - San Antonio, United States Duration: 4 Mar 2018 → 8 Mar 2018

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume	2018-March

Conference

Conference	33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
Country/Territory	United States
City	San Antonio
Period	4/03/18 → 8/03/18

UN SDGs

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

SDG 7 Affordable and Clean Energy

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10.1109/APEC.2018.8341008

Cite this

Choi, U. M., Vernica, I., & Blaabjerg, F. (2018). Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system. In APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition (pp. 193-197). (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2018-March). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2018.8341008

Choi, Ui Min ; Vernica, Ionut ; Blaabjerg, Frede. / Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system. APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 193-197 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

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title = "Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system",

abstract = "An IGBT module has typically multiple power devices for some technical and cost advantages. This kind of configurations could have an asymmetric layout, which may lead to different thermal loadings and thereby lifetime difference of the power devices. Therefore, both the power rating and lifetime of inverters are limited by the most stressed devices. However, generally common data is provided for all devices and this may cause improper design of the inverters in terms of power rating and lifetime. In this paper, the effect of an asymmetric layout of IGBT modules on the reliability of power inverters is studied based on a 3-phase motor drive application with a 600 V 30 A, 3-phase transfer molded IGBT module. The thermal impedances of 6 IGBTs are investigated and its effect on the thermal loadings of power devices is studied under the given mission profile. Finally, their lifetimes are estimated and compared.",

author = "Choi, \{Ui Min\} and Ionut Vernica and Frede Blaabjerg",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018 ; Conference date: 04-03-2018 Through 08-03-2018",

year = "2018",

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doi = "10.1109/APEC.2018.8341008",

language = "English",

series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",

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

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Choi, UM, Vernica, I & Blaabjerg, F 2018, Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system. in APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, vol. 2018-March, Institute of Electrical and Electronics Engineers Inc., pp. 193-197, 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018, San Antonio, United States, 4/03/18. https://doi.org/10.1109/APEC.2018.8341008

Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system. / Choi, Ui Min; Vernica, Ionut; Blaabjerg, Frede.
APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2018. p. 193-197 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2018-March).

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

TY - GEN

T1 - Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system

AU - Choi, Ui Min

AU - Vernica, Ionut

AU - Blaabjerg, Frede

PY - 2018/4/18

Y1 - 2018/4/18

N2 - An IGBT module has typically multiple power devices for some technical and cost advantages. This kind of configurations could have an asymmetric layout, which may lead to different thermal loadings and thereby lifetime difference of the power devices. Therefore, both the power rating and lifetime of inverters are limited by the most stressed devices. However, generally common data is provided for all devices and this may cause improper design of the inverters in terms of power rating and lifetime. In this paper, the effect of an asymmetric layout of IGBT modules on the reliability of power inverters is studied based on a 3-phase motor drive application with a 600 V 30 A, 3-phase transfer molded IGBT module. The thermal impedances of 6 IGBTs are investigated and its effect on the thermal loadings of power devices is studied under the given mission profile. Finally, their lifetimes are estimated and compared.

AB - An IGBT module has typically multiple power devices for some technical and cost advantages. This kind of configurations could have an asymmetric layout, which may lead to different thermal loadings and thereby lifetime difference of the power devices. Therefore, both the power rating and lifetime of inverters are limited by the most stressed devices. However, generally common data is provided for all devices and this may cause improper design of the inverters in terms of power rating and lifetime. In this paper, the effect of an asymmetric layout of IGBT modules on the reliability of power inverters is studied based on a 3-phase motor drive application with a 600 V 30 A, 3-phase transfer molded IGBT module. The thermal impedances of 6 IGBTs are investigated and its effect on the thermal loadings of power devices is studied under the given mission profile. Finally, their lifetimes are estimated and compared.

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PB - Institute of Electrical and Electronics Engineers Inc.

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Choi UM, Vernica I, Blaabjerg F. Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system. In APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc. 2018. p. 193-197. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). doi: 10.1109/APEC.2018.8341008

Effect of asymmetric layout of IGBT modules on reliability of power inverters in motor drive system

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