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A Diagnosis Method of Inverter Open-Circuit Fault Based on Interval Sliding Mode Observer

2022· article· en· W4362501419 on OpenAlexafffund
Jin Li, Youmin Zhang

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicMultilevel Inverters and Converters
Canadian institutionsConcordia University
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsControl theory (sociology)Observer (physics)InverterRobustness (evolution)ResidualState observerEstimatorComputer scienceUpper and lower boundsFault (geology)Interval (graph theory)MathematicsVoltageEngineeringAlgorithmPhysicsArtificial intelligenceStatisticsNonlinear system

Abstract

fetched live from OpenAlex

This study proposes a method for identifying open-circuit faults in inverters using an interval sliding mode observer. The direction of current flow via the switch sets the mixed logic dynamic (MLD) model for the inverter in both normal and fault conditions. The current estimators of the upper bound sliding mode observer and the lower bound sliding mode observer are added together and weighted to construct a current interval sliding mode observer. Then, the designed observer is used to estimate the inverter's standard three-phase current. By comparing the currents recorded by the present system and the observer, the current residual can be used to discover open-circuit problems. Using the data included in the residual, a table is constructed that can be used for fault localization. The designed current interval sliding mode observer increases the robustness of fault diagnostic scheme, accelerates the convergence of interval observer, and effectively decreases chattering.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.883
Threshold uncertainty score0.997

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.062
GPT teacher head0.288
Teacher spread0.227 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2022
Admission routes2
Has abstractyes

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