Evidence map›Paper›PMID 36015882›Full record

ReviewSensors (Basel, Switzerland)2022

Fault Prediction Based on Leakage Current in Contaminated Insulators Using Enhanced Time Series Forecasting Models.

Nemesio Fava Sopelsa Neto, Stefano Frizzo Stefenon, Luiz Henrique Meyer, Raúl García Ovejero, Valderi Reis Quietinho Leithardt

Open access · goldAbstract readReview
In one paragraph

Review in Sensors (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
8.0field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 4 institutions in 4 countries.

Nemesio Fava Sopelsa NetoDepartment of Electrical Engineering, Regional University of Blumenau, Rua São Paulo 3250, Blumenau 89030-000, Brazil.
Stefano Frizzo StefenonFondazione Bruno Kessler, Via Sommarive 18, 38123 Trento, Italy.ORCID 0000-0002-3723-616X
Luiz Henrique MeyerDepartment of Electrical Engineering, Regional University of Blumenau, Rua São Paulo 3250, Blumenau 89030-000, Brazil.ORCID 0000-0003-0569-2416
Raúl García OvejeroExpert Systems and Applications Laboratory, E.T.S.I.I. of Béjar, Universidad de Salamanca, 37700 Salamanca, Spain.ORCID 0000-0002-2862-3053
Valderi Reis Quietinho LeithardtCOPELABS, Lusófona University of Humanities and Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal.ORCID 0000-0003-0446-9271
Universidade Regional de Blumenau · BRPolytechnic Institute of Portalegre · PTUniversidad de Salamanca · ESUniversity of Udine · IT

Funding

Spanish Agencia Estatal de Investigación ID2019-108883RB-C21/AEI/10.13039/501100011033
6 · The paper itself

Abstract

To improve the monitoring of the electrical power grid, it is necessary to evaluate the influence of contamination in relation to leakage current and its progression to a disruptive discharge. In this paper, insulators were tested in a saline chamber to simulate the increase of salt contamination on their surface. From the time series forecasting of the leakage current, it is possible to evaluate the development of the fault before a flashover occurs. In this paper, for a complete evaluation, the long short-term memory (LSTM), group method of data handling (GMDH), adaptive neuro-fuzzy inference system (ANFIS), bootstrap aggregation (bagging), sequential learning (boosting), random subspace, and stacked generalization (stacking) ensemble learning models are analyzed. From the results of the best structure of the models, the hyperparameters are evaluated and the wavelet transform is used to obtain an enhanced model. The contribution of this paper is related to the improvement of well-established models using the wavelet transform, thus obtaining hybrid models that can be used for several applications. The results showed that using the wavelet transform leads to an improvement in all the used models, especially the wavelet ANFIS model, which had a mean RMSE of 1.58 ×10-3, being the model that had the best result. Furthermore, the results for the standard deviation were 2.18 ×10-19, showing that the model is stable and robust for the application under study. Future work can be performed using other components of the distribution power grid susceptible to contamination because they are installed outdoors.

Indexed as

Fuzzy LogicNeural Networks, ComputerForecastingTime FactorsANFISensemble learning modelsGMDHLSTMtime series forecastingwavelet

Identifiers

PMID36015882
PMCPMC9415177
OpenAlexW4292264333

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.