Fault diagnosis and fault-tolerant operation of current source inverter for safety-critical applications

Majid Tahmasbi Fard; Jiangbiao He; Zheng Wang

doi:10.1109/ITEC48692.2020.9161725

Fault diagnosis and fault-tolerant operation of current source inverter for safety-critical applications

Majid Tahmasbi Fard, Jiangbiao He, Zheng Wang

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

20 Scopus citations

Abstract

This paper presents the fault-tolerant current source inverter based motor-drive system, which can diagnose the open-circuit failure of the switches and restructure the topology of the inverter to keep the inverter operating in the post-fault condition. The proposed diagnostic method is able to detect the open-circuit fault both in the main switches and those of the redundant switches. During fault-tolerant operation, the identified faulty switch is fully replaced by one of the switches from the fourth leg to ensure full rating operation of the inverter without any extra overrating requirements for switches. In addition, wide bandgap (WBG) devices are employed to conFigure the redundant fourth leg. During normal operation, soft switching is enabled across all the silicon IGBTs, while just WBG devices in the fourth leg undertake hard switching. Thus, the inverter efficiency is improved and the thermal stress in the IGBTs is relieved.

Original language	English
Title of host publication	2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020
Pages	925-929
Number of pages	5
ISBN (Electronic)	9781728146294
DOIs	https://doi.org/10.1109/ITEC48692.2020.9161725
State	Published - Jun 2020
Event	2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 - Chicago, United States Duration: Jun 23 2020 → Jun 26 2020

Publication series

Name	2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020

Conference

Conference	2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020
Country/Territory	United States
City	Chicago
Period	6/23/20 → 6/26/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Funding

ACKNOWLEDGMENT The material presented in this paper is based upon work supported by NASA Kentucky under award NASA EPSCoR RID-4 (3200002377).

Funders	Funder number
Kentucky Space Grant Consortium	NASA EPSCoR RID-4, 3200002377

Keywords

Current source inverter
Fault Tolerant operation
Fault diagnosis
High efficiency
Silicon Carbide

ASJC Scopus subject areas

Energy Engineering and Power Technology
Automotive Engineering
Transportation

Access to Document

10.1109/ITEC48692.2020.9161725

Cite this

Fard, M. T., He, J., & Wang, Z. (2020). Fault diagnosis and fault-tolerant operation of current source inverter for safety-critical applications. In 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 (pp. 925-929). Article 9161725 (2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020). https://doi.org/10.1109/ITEC48692.2020.9161725

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title = "Fault diagnosis and fault-tolerant operation of current source inverter for safety-critical applications",

abstract = "This paper presents the fault-tolerant current source inverter based motor-drive system, which can diagnose the open-circuit failure of the switches and restructure the topology of the inverter to keep the inverter operating in the post-fault condition. The proposed diagnostic method is able to detect the open-circuit fault both in the main switches and those of the redundant switches. During fault-tolerant operation, the identified faulty switch is fully replaced by one of the switches from the fourth leg to ensure full rating operation of the inverter without any extra overrating requirements for switches. In addition, wide bandgap (WBG) devices are employed to conFigure the redundant fourth leg. During normal operation, soft switching is enabled across all the silicon IGBTs, while just WBG devices in the fourth leg undertake hard switching. Thus, the inverter efficiency is improved and the thermal stress in the IGBTs is relieved.",

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year = "2020",

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Fard, MT, He, J & Wang, Z 2020, Fault diagnosis and fault-tolerant operation of current source inverter for safety-critical applications. in 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020., 9161725, 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020, pp. 925-929, 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020, Chicago, United States, 6/23/20. https://doi.org/10.1109/ITEC48692.2020.9161725

Fault diagnosis and fault-tolerant operation of current source inverter for safety-critical applications. / Fard, Majid Tahmasbi; He, Jiangbiao; Wang, Zheng.
2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020. 2020. p. 925-929 9161725 (2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020).

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

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N2 - This paper presents the fault-tolerant current source inverter based motor-drive system, which can diagnose the open-circuit failure of the switches and restructure the topology of the inverter to keep the inverter operating in the post-fault condition. The proposed diagnostic method is able to detect the open-circuit fault both in the main switches and those of the redundant switches. During fault-tolerant operation, the identified faulty switch is fully replaced by one of the switches from the fourth leg to ensure full rating operation of the inverter without any extra overrating requirements for switches. In addition, wide bandgap (WBG) devices are employed to conFigure the redundant fourth leg. During normal operation, soft switching is enabled across all the silicon IGBTs, while just WBG devices in the fourth leg undertake hard switching. Thus, the inverter efficiency is improved and the thermal stress in the IGBTs is relieved.

AB - This paper presents the fault-tolerant current source inverter based motor-drive system, which can diagnose the open-circuit failure of the switches and restructure the topology of the inverter to keep the inverter operating in the post-fault condition. The proposed diagnostic method is able to detect the open-circuit fault both in the main switches and those of the redundant switches. During fault-tolerant operation, the identified faulty switch is fully replaced by one of the switches from the fourth leg to ensure full rating operation of the inverter without any extra overrating requirements for switches. In addition, wide bandgap (WBG) devices are employed to conFigure the redundant fourth leg. During normal operation, soft switching is enabled across all the silicon IGBTs, while just WBG devices in the fourth leg undertake hard switching. Thus, the inverter efficiency is improved and the thermal stress in the IGBTs is relieved.

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Fault diagnosis and fault-tolerant operation of current source inverter for safety-critical applications

Abstract

Publication series

Conference

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

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