Detection of Incipient Faults in Power Transformers using Fuzzy Logic and Decision Tree Models Based on Dissolved Gas Analysis

This paper proposes an integrated approach utilizing Fuzzy Logic and Decision Tree algorithms to diagnose early-stage faults in power transformers based on Dissolved Gas Analysis (DGA) test results of transformer insulation oil. Overcoming limitations in conventional methods such as Duval Triangle,...

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Main Authors: Felix Olowolafe, Kehinde Olukunmi Alawode
Format: Article
Language:English
Published: College of Engineering of Afe Babalola University, Ado-Ekiti (ABUAD), Ekiti State, Nigeria 2024-03-01
Series:ABUAD Journal of Engineering Research and Development
Subjects:
Online Access:https://journals.abuad.edu.ng/index.php/ajerd/article/view/329
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author Felix Olowolafe
Kehinde Olukunmi Alawode
author_facet Felix Olowolafe
Kehinde Olukunmi Alawode
author_sort Felix Olowolafe
collection DOAJ
description This paper proposes an integrated approach utilizing Fuzzy Logic and Decision Tree algorithms to diagnose early-stage faults in power transformers based on Dissolved Gas Analysis (DGA) test results of transformer insulation oil. Overcoming limitations in conventional methods such as Duval Triangle, Key Gas Analysis, Rogers Ratio, IEC Ratio, and Doernenburg Ratio, our Fuzzy Logic and Decision Tree models address issues like inaccurate diagnosis, inconsistent diagnosis, lack of decisions or out-of-code results, and time-intensive manual calculations for large DGA datasets. The Decision Tree algorithm, a machine learning technique is applied to categorize faults into thermal and electrical types. Trained with over 300 DGA samples from transformers with known faults, the models exhibit robust performance during testing with different datasets. Notably, the Duval Triangle decision tree model attains the highest accuracy among the ten developed models, achieving a 98% accuracy rate when tested with 50 samples with known faults. Moreover, Decision Tree models for KGA, Doernenburg, Rogers, and IEC also demonstrate substantial prediction accuracy at 92%, 86%, 92%, and 90% respectively underscoring the efficacy of artificial intelligence methods over traditional approaches.
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language English
publishDate 2024-03-01
publisher College of Engineering of Afe Babalola University, Ado-Ekiti (ABUAD), Ekiti State, Nigeria
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spelling doaj-art-a7c232d14157401b82239d25daffb9c72024-12-31T10:19:20ZengCollege of Engineering of Afe Babalola University, Ado-Ekiti (ABUAD), Ekiti State, NigeriaABUAD Journal of Engineering Research and Development2756-68112645-26852024-03-017110.53982/ajerd.2024.0701.06-j280Detection of Incipient Faults in Power Transformers using Fuzzy Logic and Decision Tree Models Based on Dissolved Gas AnalysisFelix Olowolafe0Kehinde Olukunmi Alawode1System Operations Department, Osogbo Area Control Centre, Osogbo, Transmission Company of Nigeria, NigeriaDepartment of Electrical and Electronic Engineering, Osun State University, Osogbo, Nigeria This paper proposes an integrated approach utilizing Fuzzy Logic and Decision Tree algorithms to diagnose early-stage faults in power transformers based on Dissolved Gas Analysis (DGA) test results of transformer insulation oil. Overcoming limitations in conventional methods such as Duval Triangle, Key Gas Analysis, Rogers Ratio, IEC Ratio, and Doernenburg Ratio, our Fuzzy Logic and Decision Tree models address issues like inaccurate diagnosis, inconsistent diagnosis, lack of decisions or out-of-code results, and time-intensive manual calculations for large DGA datasets. The Decision Tree algorithm, a machine learning technique is applied to categorize faults into thermal and electrical types. Trained with over 300 DGA samples from transformers with known faults, the models exhibit robust performance during testing with different datasets. Notably, the Duval Triangle decision tree model attains the highest accuracy among the ten developed models, achieving a 98% accuracy rate when tested with 50 samples with known faults. Moreover, Decision Tree models for KGA, Doernenburg, Rogers, and IEC also demonstrate substantial prediction accuracy at 92%, 86%, 92%, and 90% respectively underscoring the efficacy of artificial intelligence methods over traditional approaches. https://journals.abuad.edu.ng/index.php/ajerd/article/view/329Dissolved Gas AnalysisDecision TreeFuzzy LogicMembership FunctionIncipient FaultsConventional Methods
spellingShingle Felix Olowolafe
Kehinde Olukunmi Alawode
Detection of Incipient Faults in Power Transformers using Fuzzy Logic and Decision Tree Models Based on Dissolved Gas Analysis
ABUAD Journal of Engineering Research and Development
Dissolved Gas Analysis
Decision Tree
Fuzzy Logic
Membership Function
Incipient Faults
Conventional Methods
title Detection of Incipient Faults in Power Transformers using Fuzzy Logic and Decision Tree Models Based on Dissolved Gas Analysis
title_full Detection of Incipient Faults in Power Transformers using Fuzzy Logic and Decision Tree Models Based on Dissolved Gas Analysis
title_fullStr Detection of Incipient Faults in Power Transformers using Fuzzy Logic and Decision Tree Models Based on Dissolved Gas Analysis
title_full_unstemmed Detection of Incipient Faults in Power Transformers using Fuzzy Logic and Decision Tree Models Based on Dissolved Gas Analysis
title_short Detection of Incipient Faults in Power Transformers using Fuzzy Logic and Decision Tree Models Based on Dissolved Gas Analysis
title_sort detection of incipient faults in power transformers using fuzzy logic and decision tree models based on dissolved gas analysis
topic Dissolved Gas Analysis
Decision Tree
Fuzzy Logic
Membership Function
Incipient Faults
Conventional Methods
url https://journals.abuad.edu.ng/index.php/ajerd/article/view/329
work_keys_str_mv AT felixolowolafe detectionofincipientfaultsinpowertransformersusingfuzzylogicanddecisiontreemodelsbasedondissolvedgasanalysis
AT kehindeolukunmialawode detectionofincipientfaultsinpowertransformersusingfuzzylogicanddecisiontreemodelsbasedondissolvedgasanalysis