A PWM Scheme for a Fault-Tolerant Three-Level Quasi-Switched Boost T-Type Inverter

Duc-Tri Do; Minh-Khai Nguyen; Thanh-Hai Quach; Vinh-Thanh Tran; Frede Blaabjerg; Mahinda Vilathgamuwa

doi:10.1109/JESTPE.2019.2922687

A PWM Scheme for a Fault-Tolerant Three-Level Quasi-Switched Boost T-Type Inverter

Duc-Tri Do, Minh-Khai Nguyen, Thanh-Hai Quach, Vinh-Thanh Tran, Frede Blaabjerg, Mahinda Vilathgamuwa

Research output: Contribution to journal › Journal article › Research › peer-review

21 Citations (Scopus)

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Abstract

In this paper, a new optimal pulsewidth modulation (PWM) scheme for a three-level quasi-switched boost T-type inverter (TL qSBT 2I) under normal and failure modes is proposed. The proposed method reveals its semiconductor fault tolerance capability in open-circuit fault condition situations as described in this paper. The PWM control algorithm for the fault-tolerant qSBT 2I is implemented by selecting appropriate values for the modulation index, shoot-through (ST) duty cycle, and duty cycles of two additional switches. The steady-state analysis and operating principles of the fault-tolerant qSBT 2I are presented. A laboratory prototype was built to verify the operating principles of the qSBT 2I with the proposed modulation scheme before and after fault conditions.

Original language	English
Article number	8736357
Journal	IEEE Journal of Emerging and Selected Topics in Power Electronics
Volume	8
Issue number	3
Pages (from-to)	3029-3040
Number of pages	12
ISSN	2168-6777
DOIs	https://doi.org/10.1109/JESTPE.2019.2922687
Publication status	Published - Sept 2020

Keywords

Fault tolerance
Z-source inverter
Multilevel inverter
Boost inverter
Shoot-through
Single-stage

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title = "A PWM Scheme for a Fault-Tolerant Three-Level Quasi-Switched Boost T-Type Inverter",

abstract = "In this paper, a new optimal pulsewidth modulation (PWM) scheme for a three-level quasi-switched boost T-type inverter (TL qSBT 2I) under normal and failure modes is proposed. The proposed method reveals its semiconductor fault tolerance capability in open-circuit fault condition situations as described in this paper. The PWM control algorithm for the fault-tolerant qSBT 2I is implemented by selecting appropriate values for the modulation index, shoot-through (ST) duty cycle, and duty cycles of two additional switches. The steady-state analysis and operating principles of the fault-tolerant qSBT 2I are presented. A laboratory prototype was built to verify the operating principles of the qSBT 2I with the proposed modulation scheme before and after fault conditions.",

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author = "Duc-Tri Do and Minh-Khai Nguyen and Thanh-Hai Quach and Vinh-Thanh Tran and Frede Blaabjerg and Mahinda Vilathgamuwa",

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AU - Do, Duc-Tri

AU - Nguyen, Minh-Khai

AU - Quach, Thanh-Hai

AU - Tran, Vinh-Thanh

AU - Blaabjerg, Frede

AU - Vilathgamuwa, Mahinda

PY - 2020/9

Y1 - 2020/9

N2 - In this paper, a new optimal pulsewidth modulation (PWM) scheme for a three-level quasi-switched boost T-type inverter (TL qSBT 2I) under normal and failure modes is proposed. The proposed method reveals its semiconductor fault tolerance capability in open-circuit fault condition situations as described in this paper. The PWM control algorithm for the fault-tolerant qSBT 2I is implemented by selecting appropriate values for the modulation index, shoot-through (ST) duty cycle, and duty cycles of two additional switches. The steady-state analysis and operating principles of the fault-tolerant qSBT 2I are presented. A laboratory prototype was built to verify the operating principles of the qSBT 2I with the proposed modulation scheme before and after fault conditions.

AB - In this paper, a new optimal pulsewidth modulation (PWM) scheme for a three-level quasi-switched boost T-type inverter (TL qSBT 2I) under normal and failure modes is proposed. The proposed method reveals its semiconductor fault tolerance capability in open-circuit fault condition situations as described in this paper. The PWM control algorithm for the fault-tolerant qSBT 2I is implemented by selecting appropriate values for the modulation index, shoot-through (ST) duty cycle, and duty cycles of two additional switches. The steady-state analysis and operating principles of the fault-tolerant qSBT 2I are presented. A laboratory prototype was built to verify the operating principles of the qSBT 2I with the proposed modulation scheme before and after fault conditions.

KW - Inverters

KW - Circuit faults

KW - Fault tolerance

KW - Fault tolerant systems

KW - Modulation

KW - Legged locomotion

KW - Topology

KW - Z-source inverter

KW - multilevel inverter

KW - boost inverter

KW - shoot-through

KW - single-stage

KW - Fault tolerance

KW - Z-source inverter

KW - Multilevel inverter

KW - Boost inverter

KW - Shoot-through

KW - Single-stage

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JO - IEEE Journal of Emerging and Selected Topics in Power Electronics

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ER -

A PWM Scheme for a Fault-Tolerant Three-Level Quasi-Switched Boost T-Type Inverter

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