Research on digital twin modeling method of transformer temperature field based on POD
For the calculation of transient fluid–solid coupling temperature field of transformer, the traditional Galerkin finite element full order model has the defect that the calculation time is up to hours-level, which is difficult to meet the timeliness requirements of the digital twin model. Firstly, t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484723002470 |
| _version_ | 1797821564938354688 |
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| author | Liang Wang Xueqing Dong Lantao Jing Tong Li Hai Zhao Bin Zhang |
| author_facet | Liang Wang Xueqing Dong Lantao Jing Tong Li Hai Zhao Bin Zhang |
| author_sort | Liang Wang |
| collection | DOAJ |
| description | For the calculation of transient fluid–solid coupling temperature field of transformer, the traditional Galerkin finite element full order model has the defect that the calculation time is up to hours-level, which is difficult to meet the timeliness requirements of the digital twin model. Firstly, the implementation architecture of transformer digital twin based on IoT is established, and the necessity of multiphysical field simulation and model reduction technology for building the digital twin model is introduced. Then, based on the method of transformer digital twin implementation,it is proposed to combine the proper orthogonal decomposition (POD) with the finite element (FE) to establish the Galerkin FE full order model for the governing equation of the transient temperature field, the reduced order mode composed of the first several bases is intercepted to build the reduced order model of transient fluid–solid coupling temperature field. Finally, the POD reduced order model is applied to calculate the temperature rise of a transformer. According to the actual transformer temperature rise test, the temperature values of different measuring points are selected to compare the calculation error and time of the reduced order model and the full order model. The results show that the error between the third order model and full order model meets the criterion of POD truncation error, and the calculation time is shortened by 192 times, which can meet the seconds-level calculation requirements. |
| first_indexed | 2024-03-13T09:54:37Z |
| format | Article |
| id | doaj.art-7267a40487bf49518f907e11d80994e3 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-13T09:54:37Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-7267a40487bf49518f907e11d80994e32023-05-24T04:20:34ZengElsevierEnergy Reports2352-48472023-04-019299307Research on digital twin modeling method of transformer temperature field based on PODLiang Wang0Xueqing Dong1Lantao Jing2Tong Li3Hai Zhao4Bin Zhang5School of Electric Power of Shenyang Institute of Engineering, Shenyang, Liaoning 110000, ChinaSchool of Electric Power of Shenyang Institute of Engineering, Shenyang, Liaoning 110000, China; Corresponding author.School of Electric Power of Shenyang Institute of Engineering, Shenyang, Liaoning 110000, ChinaSchool of Computer Science and Engineering of Northeastern University, Shenyang, Liaoning 110000, China; Liaoning Electric Power Research Institute of State Grid Corporation of China, Shenyang, Liaoning 110000, ChinaSchool of Computer Science and Engineering of Northeastern University, Shenyang, Liaoning 110000, ChinaLiaoning Electric Power Research Institute of State Grid Corporation of China, Shenyang, Liaoning 110000, ChinaFor the calculation of transient fluid–solid coupling temperature field of transformer, the traditional Galerkin finite element full order model has the defect that the calculation time is up to hours-level, which is difficult to meet the timeliness requirements of the digital twin model. Firstly, the implementation architecture of transformer digital twin based on IoT is established, and the necessity of multiphysical field simulation and model reduction technology for building the digital twin model is introduced. Then, based on the method of transformer digital twin implementation,it is proposed to combine the proper orthogonal decomposition (POD) with the finite element (FE) to establish the Galerkin FE full order model for the governing equation of the transient temperature field, the reduced order mode composed of the first several bases is intercepted to build the reduced order model of transient fluid–solid coupling temperature field. Finally, the POD reduced order model is applied to calculate the temperature rise of a transformer. According to the actual transformer temperature rise test, the temperature values of different measuring points are selected to compare the calculation error and time of the reduced order model and the full order model. The results show that the error between the third order model and full order model meets the criterion of POD truncation error, and the calculation time is shortened by 192 times, which can meet the seconds-level calculation requirements.http://www.sciencedirect.com/science/article/pii/S2352484723002470Digital twinTransformer temperature fieldTransient fluid–solid couplingReduced order modelProper orthogonal decompositionFinite element |
| spellingShingle | Liang Wang Xueqing Dong Lantao Jing Tong Li Hai Zhao Bin Zhang Research on digital twin modeling method of transformer temperature field based on POD Energy Reports Digital twin Transformer temperature field Transient fluid–solid coupling Reduced order model Proper orthogonal decomposition Finite element |
| title | Research on digital twin modeling method of transformer temperature field based on POD |
| title_full | Research on digital twin modeling method of transformer temperature field based on POD |
| title_fullStr | Research on digital twin modeling method of transformer temperature field based on POD |
| title_full_unstemmed | Research on digital twin modeling method of transformer temperature field based on POD |
| title_short | Research on digital twin modeling method of transformer temperature field based on POD |
| title_sort | research on digital twin modeling method of transformer temperature field based on pod |
| topic | Digital twin Transformer temperature field Transient fluid–solid coupling Reduced order model Proper orthogonal decomposition Finite element |
| url | http://www.sciencedirect.com/science/article/pii/S2352484723002470 |
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