Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active Rectifier

This paper proposes a fault diagnosis and tolerant control methods for an open-switch fault caused in a three-phase three-level neutral-point-clamped (NPC) pulse-width modulation (PWM) active rectifier. The open-switch fault in the three-level NPC active rectifier causes a distortion in the input ph...

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Main Authors: Jun-Hyung Jung, Hyun-Keun Ku, Yung-Deug Son, Jang-Mok Kim
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/13/2495
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author Jun-Hyung Jung
Hyun-Keun Ku
Yung-Deug Son
Jang-Mok Kim
author_facet Jun-Hyung Jung
Hyun-Keun Ku
Yung-Deug Son
Jang-Mok Kim
author_sort Jun-Hyung Jung
collection DOAJ
description This paper proposes a fault diagnosis and tolerant control methods for an open-switch fault caused in a three-phase three-level neutral-point-clamped (NPC) pulse-width modulation (PWM) active rectifier. The open-switch fault in the three-level NPC active rectifier causes a distortion in the input phase current and a ripple in the DC-link capacitor voltage. Therefore, proper fault diagnosis and tolerant control methods are required to prevent additional failures and performance degradation in the rectifier system. This paper conducted a detailed analysis of the effect of the single open-switch fault on the NPC PWM active rectifier and proposed a fault diagnosis method utilizing the DC link voltage and the phase angle of the input grid voltage. Furthermore, this paper proposes a fault-tolerant control method to reduce the effect of the open-switch fault by compensating a distorted reference voltage. The effectiveness of the proposed fault diagnosis and tolerant control methods are verified through experimental results.
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spelling doaj.art-4ff0730e52eb48b5b42f7613f80879ef2022-12-22T02:21:19ZengMDPI AGEnergies1996-10732019-06-011213249510.3390/en12132495en12132495Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active RectifierJun-Hyung Jung0Hyun-Keun Ku1Yung-Deug Son2Jang-Mok Kim3Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, KoreaConverter Station Construction Team, Korea Electric Power Corporation, Naju, Jeollanam-do 58322, KoreaDepartment of Mechanical Facility Control Engineering, Korea University of Technology and Education, Cheonan, Chungnam 31253, KoreaDepartment of Electrical and Computer Engineering, Pusan National University, Busan 46241, KoreaThis paper proposes a fault diagnosis and tolerant control methods for an open-switch fault caused in a three-phase three-level neutral-point-clamped (NPC) pulse-width modulation (PWM) active rectifier. The open-switch fault in the three-level NPC active rectifier causes a distortion in the input phase current and a ripple in the DC-link capacitor voltage. Therefore, proper fault diagnosis and tolerant control methods are required to prevent additional failures and performance degradation in the rectifier system. This paper conducted a detailed analysis of the effect of the single open-switch fault on the NPC PWM active rectifier and proposed a fault diagnosis method utilizing the DC link voltage and the phase angle of the input grid voltage. Furthermore, this paper proposes a fault-tolerant control method to reduce the effect of the open-switch fault by compensating a distorted reference voltage. The effectiveness of the proposed fault diagnosis and tolerant control methods are verified through experimental results.https://www.mdpi.com/1996-1073/12/13/2495three-level neutral-point clamped (NPC) active rectifieropen-switch faultfault diagnosis and tolerant control methodspace vector modulation (SVM)
spellingShingle Jun-Hyung Jung
Hyun-Keun Ku
Yung-Deug Son
Jang-Mok Kim
Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active Rectifier
Energies
three-level neutral-point clamped (NPC) active rectifier
open-switch fault
fault diagnosis and tolerant control method
space vector modulation (SVM)
title Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active Rectifier
title_full Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active Rectifier
title_fullStr Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active Rectifier
title_full_unstemmed Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active Rectifier
title_short Open-Switch Fault Diagnosis Algorithm and Tolerant Control Method of the Three-Phase Three-Level NPC Active Rectifier
title_sort open switch fault diagnosis algorithm and tolerant control method of the three phase three level npc active rectifier
topic three-level neutral-point clamped (NPC) active rectifier
open-switch fault
fault diagnosis and tolerant control method
space vector modulation (SVM)
url https://www.mdpi.com/1996-1073/12/13/2495
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