Investigation on Temperature Rise Characteristic and Load Capacity of Amorphous Alloy Vegetable Oil Distribution Transformers with 3D Coupled-Field Method
The large differences in the load peak and valley of rural distribution networks always bring severe problems to system planners and operators. Given this issue, this paper deals with the hot-spot temperature (HST) of the transformer and its overload capability, and proposes a modeling method-based...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Machines |
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| Online Access: | https://www.mdpi.com/2075-1702/10/1/67 |
| _version_ | 1797492572811165696 |
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| author | Jing Guo Kaiyuan Fan Bowen Yang Hang Yang Qingjun Peng Hanbo Zheng |
| author_facet | Jing Guo Kaiyuan Fan Bowen Yang Hang Yang Qingjun Peng Hanbo Zheng |
| author_sort | Jing Guo |
| collection | DOAJ |
| description | The large differences in the load peak and valley of rural distribution networks always bring severe problems to system planners and operators. Given this issue, this paper deals with the hot-spot temperature (HST) of the transformer and its overload capability, and proposes a modeling method-based online monitoring of practical parameters. In the current work, a temperature-fluid coupling field of the 315 kVA vegetable oil distribution transformer is developed in both the two-dimensional and three-dimensional geometry, by which the convection and heat dissipation process can be studied. The grid of the model is divided into regions to increase the calculation speed and ensure the accuracy of the calculation. Secondly, tests related to the temperature rise of the transformer are carried out. The accuracy of the three-dimensional model is later discussed in terms of temperature and fluid velocity distribution. Finally, the temperature distribution laws of the amorphous alloy vegetable oil distribution transformers (AVDT) are compared and analyzed under different load conditions. Findings reveal that the AVDT has low no-load loss and strong overload capacity, which is capable of reducing the internal overheating accidents of the transformer. |
| first_indexed | 2024-03-10T01:05:37Z |
| format | Article |
| id | doaj.art-99694964b07540fdadb19756d75bada6 |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-10T01:05:37Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-99694964b07540fdadb19756d75bada62023-11-23T14:27:00ZengMDPI AGMachines2075-17022022-01-011016710.3390/machines10010067Investigation on Temperature Rise Characteristic and Load Capacity of Amorphous Alloy Vegetable Oil Distribution Transformers with 3D Coupled-Field MethodJing Guo0Kaiyuan Fan1Bowen Yang2Hang Yang3Qingjun Peng4Hanbo Zheng5Guangxi Key Laboratory of Intelligent Control and Maintenance of Power Equipment, Guangxi University, Nanning 530004, ChinaState Grid Yingda Industry Investment Funds Management, Beijing 100006, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Beijing 100091, ChinaGuangxi Key Laboratory of Intelligent Control and Maintenance of Power Equipment, Guangxi University, Nanning 530004, ChinaElectric Power Research Institute of Yunnan Power Grid Corporation, Kunming 650200, ChinaGuangxi Key Laboratory of Intelligent Control and Maintenance of Power Equipment, Guangxi University, Nanning 530004, ChinaThe large differences in the load peak and valley of rural distribution networks always bring severe problems to system planners and operators. Given this issue, this paper deals with the hot-spot temperature (HST) of the transformer and its overload capability, and proposes a modeling method-based online monitoring of practical parameters. In the current work, a temperature-fluid coupling field of the 315 kVA vegetable oil distribution transformer is developed in both the two-dimensional and three-dimensional geometry, by which the convection and heat dissipation process can be studied. The grid of the model is divided into regions to increase the calculation speed and ensure the accuracy of the calculation. Secondly, tests related to the temperature rise of the transformer are carried out. The accuracy of the three-dimensional model is later discussed in terms of temperature and fluid velocity distribution. Finally, the temperature distribution laws of the amorphous alloy vegetable oil distribution transformers (AVDT) are compared and analyzed under different load conditions. Findings reveal that the AVDT has low no-load loss and strong overload capacity, which is capable of reducing the internal overheating accidents of the transformer.https://www.mdpi.com/2075-1702/10/1/67amorphous alloyvegetable insulating oildistribution transformersmart gridhot-spot temperature |
| spellingShingle | Jing Guo Kaiyuan Fan Bowen Yang Hang Yang Qingjun Peng Hanbo Zheng Investigation on Temperature Rise Characteristic and Load Capacity of Amorphous Alloy Vegetable Oil Distribution Transformers with 3D Coupled-Field Method Machines amorphous alloy vegetable insulating oil distribution transformer smart grid hot-spot temperature |
| title | Investigation on Temperature Rise Characteristic and Load Capacity of Amorphous Alloy Vegetable Oil Distribution Transformers with 3D Coupled-Field Method |
| title_full | Investigation on Temperature Rise Characteristic and Load Capacity of Amorphous Alloy Vegetable Oil Distribution Transformers with 3D Coupled-Field Method |
| title_fullStr | Investigation on Temperature Rise Characteristic and Load Capacity of Amorphous Alloy Vegetable Oil Distribution Transformers with 3D Coupled-Field Method |
| title_full_unstemmed | Investigation on Temperature Rise Characteristic and Load Capacity of Amorphous Alloy Vegetable Oil Distribution Transformers with 3D Coupled-Field Method |
| title_short | Investigation on Temperature Rise Characteristic and Load Capacity of Amorphous Alloy Vegetable Oil Distribution Transformers with 3D Coupled-Field Method |
| title_sort | investigation on temperature rise characteristic and load capacity of amorphous alloy vegetable oil distribution transformers with 3d coupled field method |
| topic | amorphous alloy vegetable insulating oil distribution transformer smart grid hot-spot temperature |
| url | https://www.mdpi.com/2075-1702/10/1/67 |
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