Document
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IET Power Electronics
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publication venue for: Model-based strategy for open-circuit faults diagnosis in n-level CHB multilevel converters
type: Document
type: Information Content Entity
type: Journal

Continuant
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Generically Dependent Continuant
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RDF description of Model-based strategy for open-circuit faults diagnosis in n-level CHB multilevel converters - http://orbis.uaslp.mx/vivo/individual/scopus5900
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date: 2026-08-28T02:11:35
publisher: vivo
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Article
type: Class

Model-based strategy for open-circuit faults diagnosis in n-level CHB multilevel converters
type: Document
has funding vehicle: Universidad Nacional de San Luis, UNSL: C16-FAI-09-50.50
most specific type: Article
origen: scopus
crisid: 5901
freetext keyword: Additives; Bridge circuits; Power converters; Timing circuits; Uncertainty analysis; Cascaded H bridge (CHB); Fault detection and isolation schemes; Fundamental frequencies; Model-based strategy; Multilevel converter; Oscillatory components; Parametric uncertainties; Shunt active power filters; Fault detection
doi: 10.1049/iet-pel.2018.5478
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volume: 12
type: Article
related by: authorship_37425
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e iscopus: 2-s2.0-85064246266
has publication venue: IET Power Electronics
date time value: article date 5901
estado: published
most specific type: Document
page start: 648
page end: 655
related by: authorship_37424
related by: authorship_37423
type: Information Content Entity
type: Generically Dependent Continuant
abstract: Here, the authors study open-circuit faults (OCFs) in the power switches of multilevel converters with a model-based perspective. In specific, the authors address single-phase cascaded H-bridge (CHB) converters with n-levels in its output voltage (CHB-n L), which are designed as shunt active power filters. In this task, the OCFs are modelled by fault profiles with an additive structure in each subsystem of the CHB-n L converter. These additive fault profiles have constant and oscillatory components, where the constant term sign indicates the pair of damaged switches in the H-bridge. Hence, a sliding-mode integral observer is proposed to estimate the constant terms of the fault profiles. The complexity of the observer depends on the number of H-bridges in the CHB-n L converter. As a result, the proposed fault detection and isolation (FDI) scheme relies on the estimated constant terms of the additive fault profiles to achieve a robust and fast diagnosis stage. The proposed model-based FDI scheme is validated experimentally under single and multiple fault scenarios, and model uncertainty. During the evaluation, the derived methodology only requires less than one cycle of the fundamental frequency to isolate the faults, and show robustness to load changes and parametric uncertainty. © The Institution of Engineering and Technology 2019.
issue: 4
related by: authorship_37422

Information Content Entity
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Universidad Nacional de San Luis, UNSL: C16-FAI-09-50.50
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type: BFO_0000020
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funding vehicle for: Model-based strategy for open-circuit faults diagnosis in n-level CHB multilevel converters