Inverter open circuit fault diagnosis based on residual performance evaluation

Abstract Because of uncertain random noise and unknown disturbance, the observer‐based inverter fault diagnosis meets the problems of large deviation of current observation value and high false alarm rate. An inverter open‐circuit fault diagnosis method is proposed via residual performance evaluatio...

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Main Authors: Tianyu Sun, Chaobo Chen, Shenhang Wang, Binbin Zhang, Yanfang Fu, Jichao Li
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:IET Power Electronics
Subjects:
Online Access:https://doi.org/10.1049/pel2.12583
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author Tianyu Sun
Chaobo Chen
Shenhang Wang
Binbin Zhang
Yanfang Fu
Jichao Li
author_facet Tianyu Sun
Chaobo Chen
Shenhang Wang
Binbin Zhang
Yanfang Fu
Jichao Li
author_sort Tianyu Sun
collection DOAJ
description Abstract Because of uncertain random noise and unknown disturbance, the observer‐based inverter fault diagnosis meets the problems of large deviation of current observation value and high false alarm rate. An inverter open‐circuit fault diagnosis method is proposed via residual performance evaluation. Firstly, the interval sliding mode observer is constructed by combining the interval observer with the sliding mode observer. Three phase current estimates are obtained and current residuals are calculated. Secondly, the residual performance indicators are calculated using the evaluation function. The fault detection is derived by comparing residual performance with the threshold. Thirdly, a residual information table is established based on the fault information contained in the residual for fault isolation. Finally, the proposed algorithm is validated on simulation and physical platforms. Compared with traditional observer‐based diagnostic methods, the introduction of residual performance evaluation improves the diagnostic speed by more than 50%. The interval sliding mode observer has higher estimation accuracy and anti‐interference ability in the presence of noise and external disturbances.
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spelling doaj.art-1ff662abd2404647891eb9178711fe332023-11-21T07:57:30ZengWileyIET Power Electronics1755-45351755-45432023-11-0116152560257610.1049/pel2.12583Inverter open circuit fault diagnosis based on residual performance evaluationTianyu Sun0Chaobo Chen1Shenhang Wang2Binbin Zhang3Yanfang Fu4Jichao Li5School of Electronic Information Engineering Xi'an Technological University Xi'an Shaanxi ChinaSchool of Electronic Information Engineering Xi'an Technological University Xi'an Shaanxi ChinaBeijing Aerospace Automatic Control Institution Beijing ChinaSchool of Electronic Information Engineering Xi'an Technological University Xi'an Shaanxi ChinaSchool of Computer Science and Engineering Xi'an Technological University Xi'an Shaanxi ChinaSchool of Electronic Information Engineering Xi'an Technological University Xi'an Shaanxi ChinaAbstract Because of uncertain random noise and unknown disturbance, the observer‐based inverter fault diagnosis meets the problems of large deviation of current observation value and high false alarm rate. An inverter open‐circuit fault diagnosis method is proposed via residual performance evaluation. Firstly, the interval sliding mode observer is constructed by combining the interval observer with the sliding mode observer. Three phase current estimates are obtained and current residuals are calculated. Secondly, the residual performance indicators are calculated using the evaluation function. The fault detection is derived by comparing residual performance with the threshold. Thirdly, a residual information table is established based on the fault information contained in the residual for fault isolation. Finally, the proposed algorithm is validated on simulation and physical platforms. Compared with traditional observer‐based diagnostic methods, the introduction of residual performance evaluation improves the diagnostic speed by more than 50%. The interval sliding mode observer has higher estimation accuracy and anti‐interference ability in the presence of noise and external disturbances.https://doi.org/10.1049/pel2.12583DC–AC power convertorsfault diagnosisinvertorsmathematical analysispower electronicsinterval sliding mode observer
spellingShingle Tianyu Sun
Chaobo Chen
Shenhang Wang
Binbin Zhang
Yanfang Fu
Jichao Li
Inverter open circuit fault diagnosis based on residual performance evaluation
IET Power Electronics
DC–AC power convertors
fault diagnosis
invertors
mathematical analysis
power electronics
interval sliding mode observer
title Inverter open circuit fault diagnosis based on residual performance evaluation
title_full Inverter open circuit fault diagnosis based on residual performance evaluation
title_fullStr Inverter open circuit fault diagnosis based on residual performance evaluation
title_full_unstemmed Inverter open circuit fault diagnosis based on residual performance evaluation
title_short Inverter open circuit fault diagnosis based on residual performance evaluation
title_sort inverter open circuit fault diagnosis based on residual performance evaluation
topic DC–AC power convertors
fault diagnosis
invertors
mathematical analysis
power electronics
interval sliding mode observer
url https://doi.org/10.1049/pel2.12583
work_keys_str_mv AT tianyusun inverteropencircuitfaultdiagnosisbasedonresidualperformanceevaluation
AT chaobochen inverteropencircuitfaultdiagnosisbasedonresidualperformanceevaluation
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AT binbinzhang inverteropencircuitfaultdiagnosisbasedonresidualperformanceevaluation
AT yanfangfu inverteropencircuitfaultdiagnosisbasedonresidualperformanceevaluation
AT jichaoli inverteropencircuitfaultdiagnosisbasedonresidualperformanceevaluation