Journals / Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering / 2026 / Volume: 68 Issue: 1

Comparison of Artificial Intelligence Techniques and Conventional Techniques for Power Transformer Fault Diagnosis with Dissolved Gas Analysis (DGA): Challenges and Opportunities

Nurullah Açıkgöz(ANKARA ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ)0000-0003-4328-5758
Murat Sazlı(ANKARA ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ)0000-0001-9235-3679
Pages
—
Publication Date
2026-06-30
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In the study, future challenges and opportunities are elaborately presented for researchers.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In power systems, transformers have a key role in terms of electrical energy sustainability in transmission and distribution.
📊
Key Findings & Data:Moreover, this crucial instrument of power systems must be operated at optimum performance in electric transmission lines and power distribution system as well as rational economic conditions.
💡
Conclusion & Impact:In the study, future challenges and opportunities are elaborately presented for researchers.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Power transformer · artificial intelligence techniques · DGA

Abstract

In power systems, transformers have a key role in terms of electrical energy sustainability in transmission and distribution. Moreover, this crucial instrument of power systems must be operated at optimum performance in electric transmission lines and power distribution system as well as rational economic conditions. When usual operating conditions is became, mineral oil comes out on a slow and typical degradation. If on the contrary due to thermal or electrical stress, the degradation status accelarates. In this case, some gases (ethylene,acetylene,carbonmonoxide,carbondioxied, hydrogen, methane,ethane) are occured in the mineral oil. For dissolved gas analysis (DGA), custom traditional methods seems to identify and classify the initial faults. However, they are unable to notice the status in case of multiple electrical and thermal errors simultaneously. While the serious limitation of conventional DGA methods in terms of accuracy and consistency, AI methods gives well prediction. In the study, future challenges and opportunities are elaborately presented for researchers.

🔖

Cite This Article

Açıkgöz, N., Sazlı, M. (2026). Comparison of Artificial Intelligence Techniques and Conventional Techniques for Power Transformer Fault Diagnosis with Dissolved Gas Analysis (DGA): Challenges and Opportunities. Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering, Volume: 68 Issue: 1. https://doi.org/10.33769/aupse.1757488

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (80)

  1. Guide for the Sampling of Gases and of Oil-Filled Electrical Equipment and for the Analysis of Free and Dissolved Gases, IEC Standard 60567, 2005.
  2. IEEE Guide for the Interpretation of Gases Generated in Mineral Oil-Immersed Transformers, IEEE Standard C57.104-2019 (Revision of IEEE Std C57.104-2008),2019.
  3. Guide for the Interpretation of Dissolved Gas Analysis and Gas-Free, IEC Standard 60599, 2007.
  4. E. Mori et al., Latest diagnostic methods of gas-in-oil analysis for oil-filled transformer in Japan, Proceedings of 1999 IEEE 13th International Conference on Dielectric Liquids (ICDL'99), pp. 503-508, 1999.
  5. Y. Li, Y. Xu, X. Li, R. Li, J. Lin, G. Zhang, Addressing imbalance of sample datasets in dissolved gas analysis by data augmentation: Generative adversarial networks, IET Gener. Transm. Distrib., vol. 16, pp. 4494–4504, 2022.
  6. N. Khan and S. A. Ammar Taqvi, Machine Learning an Intelligent Approach in Process Industries: A Perspective and Overview, CBEN, vol. 10, pp. 195-221, 2023.
  7. S. Misbahulmunir, V. K. Ramachandaramurthy and Y. H. M. Thayoob, Improved Self-Organizing Map Clustering of Power Transformer Dissolved Gas Analysis Using Inputs Pre-Processing, in IEEE Access, vol. 8, pp. 71798-71811, 2020.
  8. Z. Yin, Y. Zhen, C. Huo and J. Chen, Deep learning based transformer fault diagnosis method, 2021 IEEE 2nd International Conference on Big Data, Artificial Intelligence and Internet of Things Engineering (ICBAIE), 2021, pp. 216-219.
  9. M. S. Ali, A. H. A. Bakar, A. Omar, A.S.A. Jaafar, S. H. Mohamed, Conventional methods of dissolved gas analysis using oil-immersed power transformer for fault diagnosis: A review, Electric Power Systems Research, vol. 216, 2023.
  10. A. Khanna, P. Bisht, Rogers ratio test for fault diagnosis of transformer using dissolved gas analysis, Materials Today: Proceedings, vol. 71, no. 2, pp. 243-246, 2022.
  11. R. Soni, B. Mehta, Graphical examination of dissolved gas analysis by ratio methods and Duval triangle method to investigate internal faults of power transformer, Materials Today: Proceedings, vol. 62, no. 13, pp. 7098-7103, 2022.
  12. H. -C. Sun, Y. -C. Huang, C.-M. Huang, A Review of Dissolved Gas Analysis in Power Transformers, Energy Procedia, vol 14, pp. 1220-1225, 2012.
  13. S. S. M. Ghoneim, I. B. M. Taha, A new approach of DGA interpretation technique for transformer fault diagnosis, International Journal of Electrical Power & Energy Systems, vol. 81, pp. 265-274, 2016.
  14. M. Duval, L. Lamarre, The new Duval Pentagons available for DGA diagnosis in transformers filled with mineral and ester oils, IEEE Electrical Insulation Conference (EIC), Baltimore, MD, USA, 2017, pp. 279-281.
  15. M. Duval and J. Buchacz, Detection of Carbonization of Paper in Transformers Using Duval Pentagon 2 and Triangle 5, IEEE Transactions on Dielectrics and Electrical Insulation, vol. 30-4, pp. 1534-1539, Aug. 2023.
  16. T. U. Mawelela, A. F. Nnachi, A. O. Akumu and B. T. Abe, Fault Diagnosis of Power Transformers Using Duval Triangle, IEEE PES/IAS Power Africa, pp.1-5, Nairobi, Kenya, 2020.
  17. S. S. Desouky, A. E. Kalas, R. A. A. El-Aal and A. M. M. Hassan, Modification of Duval triangle for diagnostic transformer fault through a procedure of dissolved gases analysis, IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC), pp. 1-5, Florence, Italy, 2016.
  18. O. Shutenko and O. Kulyk, Comparative Analysis of the Defect Type Recognition Reliability in High-Voltage Power Transformers Using Different Methods of DGA Results Interpretation, IEEE Problems of Automated Electrodrive. Theory and Practice (PAEP), pp. 1-6, Kremenchuk, Ukraine, 2020.
  19. N. Pattanadech and W. Wattakapaiboon, Application of Duval Pentagon Compared with Other DGA Interpretation Techniques: Case Studies for Actual Transformer Inspections Including Experience from Power Plants in Thailand, 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST), Luang Prabang, Laos, pp. 1-4, 2019.
  20. T. Suwarno, Y. Li and G. -J. Zhang, Combining conventional and artificial intelligence DGA interpretation methods using optimized weighting factor, International Seminar on Intelligent Technology and Its Applications (ISITIA), Lombok, Indonesia, pp. 37-42, 2016.
  21. L. Jin, D. Kim, K. Y. Chan and A. Abu-Siada, Deep Machine Learning-based Asset Management Approach for Oil-Immersed Power transformers using Dissolved Gas Analysis, in IEEE Access,2024.
  22. E. Moradi, A Data-Driven based Robust Multilayer Perceptron Approach for Fault Diagnosis of Power Transformers, 2024 20th CSI International Symposium on Artificial Intelligence and Signal Processing (AISP), Babol, Iran, Islamic Republic of, 2024, pp. 1-5.
  23. Abdo et al., Hybrid Model of Power Transformer Fault Classification Using C-set and MFCM – MCSVM, in CSEE Journal of Power and Energy Systems, vol. 10, no. 2, pp. 672-685, March 2024.
  24. G. S. Patil, U. S. Patil and P. P. Shinde, Enhancing Power Transformer Reliability through Machine Learning-Based Fault Prediction Using Dissolved Gas Analysis, 2024 Third International Conference on Power, Control and Computing Technologies (ICPC2T), Raipur, India, 2024, pp. 72-76.
  25. W. Liao, Y. Zhang, D. Cao, T. Ishizaki, Z. Yang and D. Yang, Explainable Fault Diagnosis of Oil-Immersed Transformers: A Glass-Box Model, in IEEE Transactions on Instrumentation and Measurement, vol. 73, pp. 1-4, 2024, Art no. 2506204.
  26. J. E., Y. Zhang, W. He, W. Zhang, Y. Cao and G. Lv, A New Method for Oil-Immersed Transformers Fault Diagnosis Based on Evidential Reasoning Rule With Optimized Probabilistic Distributed, in IEEE Access, vol. 12, pp. 34289-34305, 2024.
  27. Y. Zhang et al., Early Warning of Incipient Faults for Power Transformer Based on DGA Using a Two-Stage Feature Extraction Technique, in IEEE Transactions on Power Delivery, vol. 37, no. 3, pp. 2040-2049, June 2022.
  28. Z. Gao, X. Wang, F. Yi, W. Xu and M. Zhu, Transformer DGA Diagnostic Method Based on Fuzzy Logic Function Method, 2023 IEEE 11th Joint International Information Technology and Artificial Intelligence Conference (ITAIC), Chongqing, China, 2023, pp. 1639-1642.
  29. S. Saroja, S. Haseena and R. Madavan, Dissolved Gas Analysis of Transformer: An Approach Based on ML and MCDM, in IEEE Transactions on Dielectrics and Electrical Insulation, vol. 30, no. 5, pp. 2429-2438, Oct. 2023.
  30. R. A. Raj, S. D, S. K. Venkatachary and L. J. B. Andrews, Classification and Prediction of Incipient Faults in Transformer Oil by Supervised Machine Learning using Decision Tree, 2023 3rd International conference on Artificial Intelligence and Signal Processing (AISP), VIJAYAWADA, India, 2023, pp. 1-6.
  31. X. Yang, M. Yue, T. Jia and A. Sun, Transformer Fault Diagnosis Based on DGA Information Fusion, 2023 4th International Conference on Big Data, Artificial Intelligence and Internet of Things Engineering (ICBAIE), Hangzhou, China, 2023, pp. 241-244.
  32. S. Das, A. Paramane, S. Chatterjee, and U. M. Rao, Accurate identification of transformer faults from dissolved gas data using recursive feature elimination method, IEEE Trans. Dielectr. Electr. Insul., vol. 30, no. 1, pp. 466–473, Feb. 2023.
  33. N. Hirkaney and S. Lall, Comparison of Fault Identification Methods for Analyzing Transformer Dissolved Gas, 2023 3rd International Conference on Energy, Power and Electrical Engineering (EPEE), Wuhan, China, 2023, pp. 902-907.
  34. Z. Jing, H. Zhang and P. Yang, Analysis Method of Dissolved Gas in Power Transformer oil Based on Fuzzy Reinforcement Learning, 2023 5th International Conference on Power and Energy Technology (ICPET), Tianjin, China, 2023, pp. 148-152.
  35. E. Baker, S. V. Nese, E. Dursun, Hybrid Condition Monitoring System for Power Transformer Fault Diagnosis, Energies 2023, vol. 16, pp. 1151, Hybrid Condition Monitoring System for Power Transformer Fault Diagnosis.
  36. K. N. V. P. S. Rajesh, U. M. Rao, I. Fofana, P. Rozga and A. Paramane, Influence of Data Balancing on Transformer DGA Fault Classification With Machine Learning Algorithms, in IEEE Transactions on Dielectrics and Electrical Insulation, vol. 30, no. 1, pp. 385-392, Feb. 2023.
  37. T. Wang, J. Yang, J. Shao, P. Wu, Y. Ma and J. Liang, Improvement of Power Transformer Faults Diagnosis Using Random Search with Classification and Regression Tree, 2023 5th Asia Energy and Electrical Engineering Symposium (AEEES), Chengdu, China, 2023, pp. 653-658.
  38. W. Lu, C. Shi, H. Fu and Y. Xu, Fault Diagnosis Method for Power Transformers Based on Improved Golden Jackal Optimization Algorithm and Random Configuration Network, in IEEE Access, vol. 11, pp. 35336-35351, 2023.
  39. B. Jan, O. Rahman, S. Parveen and S. A. Khan, Multi-Stage Binary Classification Technique for Incipient Fault Diagnosis of Oil Immersed Power Transformers Based on ANFIS, 2023 International Conference on Power, Instrumentation, Energy and Control (PIECON), Aligarh, India, 2023, pp. 1-6.
  40. L. Wang, T. Littler and X. Liu, Dynamic Incipient Fault Forecasting for Power Transformers Using an LSTM Model, in IEEE Transactions on Dielectrics and Electrical Insulation, vol. 30, no. 3, pp. 1353-1361, June 2023.
  41. Z. Xing, Y. He, X. Wang, K. Shao and J. Duan, VMD-IARIMA-Based Time-Series Forecasting Model and its Application in Dissolved Gas Analysis, in IEEE Transactions on Dielectrics and Electrical Insulation, vol. 30, no. 2, pp. 802-811, April 2023.
  42. L. Yong, Z. Lei, X. Ziqiang, X. Yusong and J. Xuebiao, Prediction Model of Dissolved Gas in Transformer Oil Based on EMD and BiGRU, 2023 5th Asia Energy and Electrical Engineering Symposium (AEEES), Chengdu, China, 2023, pp. 1460-1464.
  43. A. Nanfak, S. Eke, F. Meghnefi, I. Fofana, G. M. Ngaleu and C. H. Kom, Hybrid DGA Method for Power Transformer Faults Diagnosis Based on Evolutionary k-Means Clustering and Dissolved Gas Subsets Analysis, in IEEE Transactions on Dielectrics and Electrical Insulation, vol. 30, no. 5, pp. 2421-2428, Oct. 2023.
  44. X. Yang, Y. Yin, T. Jia and M. Yue, Transformer Fault Diagnosis Method Based on Hunter Hunt Algorithm Optimization, 2023 10th International Forum on Electrical Engineering and Automation (IFEEA), Nanjing, China, 2023, pp. 1045-1048.
  45. G. Venkateshwari, R. Ananthi, S. S. Abirami, C. M. Lakshmi Rama, T. Sangeetha and B. Vigneshwaran, Semi-Supervised Learning based Power Transformer Health Monitoring Index using Deep Learning, 2023 7th International Conference on Electronics, Communication and Aerospace Technology (ICECA), Coimbatore, India, 2023, pp. 530-534.
  46. H. C. Chen, Y. Zhang and M. Chen, Transformer Dissolved Gas Analysis for Highly-Imbalanced Dataset Using Multiclass Sequential Ensembled ELM, in IEEE Transactions on Dielectrics and Electrical Insulation, vol. 30, no. 5, pp. 2353-2361, Oct. 2023.
  47. M. N. Ali, M. Amer and M. Elsisi, Reliable IoT Paradigm With Ensemble Machine Learning for Faults Diagnosis of Power Transformers Considering Adversarial Attacks, in IEEE Transactions on Instrumentation and Measurement, vol. 72, pp. 1-13, 2023, Art no. 3525413.
  48. N. L. Z. Msomi and B. A. Thango, Development of Dissolved Gas Analysis-based Fault identification System using Machine Learning with Google Colab, 2023 31st Southern African Universities Power Engineering Conference (SAUPEC), Johannesburg, South Africa, 2023, pp. 1-6.
  49. J. F. Vidal and A. R. G. Castro, Diagnosing Faults in Power Transformers With Variational Autoencoder, Genetic Programming, and Neural Network, in IEEE Access, vol. 11, pp. 30529-30545, 2023.
  50. R. A. Prasojo, H. F. W. Azizi, I. Kurniawan, Suwarno, H. Sutikno and I. Ridzki, Naïve Bayes Model for Combining Results from Multi-Methods Fault Identification of Power Transformer, 2023 4th International Conference on High Voltage Engineering and Power Systems (ICHVEPS), Denpasar Bali, Indonesia, 2023, pp. 199-203.
  51. W. Lu et al., Research on transformer fault diagnosis based on ISOMAP and IChOA-LSSVM, IET Electr. Power Appl. vol. 17(6), pp. 773–787, 2023.
  52. H. Shi, M.Chen, A two-stage transformer fault diagnosis method based multi-filter interactive feature selection integrated adaptive sparrow algorithm optimised support vector machine, IET Electr. Power Appl. vol. 17(3), pp. 341–357, 2023.
  53. Y. Wang, Application of improved support vector machine model in fault diagnosis and prediction of power transformers, Advanced Control for Applications: Engineering and Industrial Systems., pp.170, 2023.
  54. Z. Fan, K. Bai and X. Zheng, Hybrid GA and Improved CNN Algorithm for Power Plant Transformer Condition Monitoring Model, in IEEE Access.
  55. S. D. Patil, A. J. Patil, M. Dharme and R. K. Jarial, DGA Based Ensemble Learning Approach for Power Transformer Fault Diagnosis, 2023 International Conference in Advances in Power, Signal, and Information Technology (APSIT), Bhubaneswar, India, 2023, pp. 722-727.
  56. L. Wang, T. Littler, X. Liu, Hybrid AI model for power transformer assessment using imbalanced DGA datasets, IET Renew. Power Gener., vol. 17, pp. 1912–1922, 2023.
  57. H. Zhang et al., Improved information entropy weighted vague support vector machine method for transformer fault diagnosis, High Volt., vol. 7(3), pp. 510–522, 2022.
  58. A. G. C. Menezes, M. M. Araujo, O. M. Almeida, F. R. Barbosa and A. P. S. Braga, Induction of Decision Trees to Diagnose Incipient Faults in Power Transformers, in IEEE Transactions on Dielectrics and Electrical Insulation, vol. 29, no. 1, pp. 279-286, Feb. 2022.
  59. M. Demirci, H. Gozde and M.C. Taplamacioglu, Fault diagnosis of power transformers with machine learning methods using traditional methods data, International Journal on Technical and Physical Problems of Engineering (IJTPE), vol. 13, iss. 49, pp. 225-230, 2021.
  60. F. Ru, L. Zhang, X. Yang, H. Zou, Y. Lu and X. Xu, Transformer Fault Diagnosis Based on Dissolved Gas Analysis in Oil and Ensemble Learning, 2022 IEEE 5th International Electrical and Energy Conference (CIEEC), Nangjing, China, 2022, pp. 3174-3178.
  61. S. S. Baiju et.al., Root Cause Analysis in Power Transformer Failure with Improved Intelligent Methods, 2022 IEEE International Power and Renewable Energy Conference (IPRECON), Kollam, India, 2022, pp. 1-6.
  62. X. Wang et al., Power Transformer Defect Prediction Method Based on SMOTE and Random Forest Algorithm, 2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE), Chongqing, China, 2022, pp. 1-4.
  63. M. Badawi, S. A. Ibrahim, A. El-Faraskoury, D. A. Mansour and S. A. Ward, A Novel DGA Oil Interpretation Approach Based on Combined Techniques, 2022 23rd International Middle East Power Systems Conference (MEPCON), Cairo, Egypt, 2022, pp. 01-08.
  64. D. Luo et al., Prediction for Dissolved Gas in Power Transformer Oil Based On TCN and GCN, in IEEE Transactions on Industry Applications, vol. 58, no. 6, pp. 7818-7826, Nov.-Dec. 2022.
  65. L. Feng and Y. Bo, Intelligent fault diagnosis technology of power transformer based on Artificial Intelligence, 2022 IEEE 6th Information Technology and Mechatronics Engineering Conference (ITOEC), Chongqing, China, 2022, pp. 1968-1971.
  66. Y. Wu, X. Sun, B. Dai, P. Yang, Z. Wang, A transformer fault diagnosis method based on hybrid improved grey wolf optimization and least squares-support vector machine, IET Gener. Transm. Distrib., vol16, pp. 1950–1963, 2022.
  67. X. Tan et al., A novel two-stage Dissolved Gas Analysis fault diagnosis system based semi-supervised learning, High Volt., vol. 7(4), pp. 676–691, 2022.
  68. C. Ding et al., Fault diagnosis of oil-immersed transformers based on the improved sparrow search algorithm optimised support vector machine, IET Electr. Power Appl., vol. 16(9), pp. 985–995, 2022.
  69. H. Hu, X. Ma, Y. Shang, A novel method for transformer fault diagnosis based on refined deep residual shrinkage network, IET Electr. Power Appl., vol. 16(2), pp. 206–223, 2022, doi:10.1049/elp2.12147.
  70. J. I. Aizpurua, V. M. Catterson, B. G. Stewart,S.D.J. McArthur, B. Lambert and J.G. Cross, Uncertainty-aware fusion of probabilistic classifiers for improved transformer diagnostics, IEEE Transactions on Systems, Man, and Cybernetics: Systems, vol. 51, pp. 621-633, 2021.
  71. Y. Wu, X. Sun, Y. Zhang, X. Zhong and L. Cheng, A Power Transformer Fault Diagnosis Method-Based Hybrid Improved Seagull Optimization Algorithm and Support Vector Machine, in IEEE Access, vol. 10, pp. 17268-17286, 2022.
  72. W. Cui, M. Chu, C. Ding, Y. Wang, M. Wang and L. Liu, Research on The Fault Diagnosis Method of Oil-Immersed Transformers Based on The Improved DBSCAN Algorithm, 2021 China Automation Congress (CAC), Beijing, China, 2021, pp. 5171-5176.
  73. H. A. Illias, C. Kai Choon, W. Z. Liang, H. Mokhlis, A. M. Ariffin and M. Fairouz Mohd Yousof, Fault Identification in Power Transformers Using Dissolve Gas Analysis and Support Vector Machine, 2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM), Johor Bahru, Malaysia, 2021, pp. 33-36.
  74. O. Kherif, Y. Benmahamed, M. Teguar, A. Boubakeur and S. S. M. Ghoneim, Accuracy Improvement of Power Transformer Faults Diagnostic Using KNN Classifier With Decision Tree Principle, in IEEE Access, vol. 9, pp. 81693-81701, 2021.
  75. S. S. M. Ghoneim, T. A. Farrag, A. A. Rashed, E. -S. M. El-Kenawy and A. Ibrahim, Adaptive Dynamic Meta-Heuristics for Feature Selection and Classification in Diagnostic Accuracy of Transformer Faults, in IEEE Access, vol. 9, pp. 78324-78340, 2021.
  76. D. Rediansyah, R. A. Prasojo, Suwarno and A. Abu-Siada, Artificial Intelligence-Based Power Transformer Health Index for Handling Data Uncertainty, in IEEE Access, vol. 9, pp. 150637-150648, 2021.
  77. L. Zhang et al., An adaptive fault diagnosis method of power transformers based on combining oversampling and cost-sensitive learning, IET Smart Grid., vol. 4(6), pp. 623–635, 2021.
  78. X. Yang, W. Chen, A. Li, and C. Yang, A Hybrid machine-learning method for oil-immersed power transformer fault diagnosis, IEEJ Trans Elec Electron Eng, vol.15, pp. 501-507, 2020.
  79. X. Huang, X. Huang, B. Wang, and Z. Xie, Fault diagnosis of transformer based on modified grey wolf optimization algorithm and support vector machine, IEEJ Trans Elec Electron Eng, vol. 15, pp. 409-417, 2020.
  80. X. Yang, M. Yue, T. Jia and A. Sun, Transformer Fault Diagnosis Based on DGA Information Fusion, 2023 4th International Conference on Big Data, Artificial Intelligence and Internet of Things Engineering (ICBAIE), Hangzhou, China, 2023, pp. 241-244.