Modeling and Testing of 3D Wound Core Loss of Amorphous Alloy Transformer for Photovoltaic Inverter
The harmonic content of transformers used in the field of new energy is significantly higher than that of conventional transformers, leading to an abnormal increase in transformer loss during operation. Therefore, the loss characteristics of amorphous alloy transformers are investigated in this pape...
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2025-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/11/2698 |
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| author | Peng Chen Jianwei Han Xinglong Yao Xiaohui Wang Yunfei Yan Zhe Zhao Lisong Zhang Zhanyang Yu Hao Li |
| author_facet | Peng Chen Jianwei Han Xinglong Yao Xiaohui Wang Yunfei Yan Zhe Zhao Lisong Zhang Zhanyang Yu Hao Li |
| author_sort | Peng Chen |
| collection | DOAJ |
| description | The harmonic content of transformers used in the field of new energy is significantly higher than that of conventional transformers, leading to an abnormal increase in transformer loss during operation. Therefore, the loss characteristics of amorphous alloy transformers are investigated in this paper. First, a measurement platform for the magnetic property of transformer cores under sinusoidal excitation is developed. The magnetization characteristics, loss characteristics and loss composition of the amorphous alloy core under sinusoidal excitation are measured and analyzed. On this basis, the traditional Steinmetz loss calculation formula is modified, and the loss calculation formula is further refined by improving its coefficients to accommodate various frequencies. Secondly, using a field-circuit coupling method, a 3D model of the transformer core is established by finite element simulation. The magnetic flux distribution and core losses are computed under both sinusoidal excitation and non-sinusoidal excitation. Finally, the impact of core rotation magnetization on the magnetic flux density is considered, and experimental errors are minimized by applying an empirical formula. The numerical model validity and accuracy are verified by comparing the simulation results with experimental data. |
| format | Article |
| id | doaj-art-a6a93a93d81d4b6cb477dcafd0b3f679 |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-a6a93a93d81d4b6cb477dcafd0b3f6792025-08-20T03:46:48ZengMDPI AGEnergies1996-10732025-05-011811269810.3390/en18112698Modeling and Testing of 3D Wound Core Loss of Amorphous Alloy Transformer for Photovoltaic InverterPeng Chen0Jianwei Han1Xinglong Yao2Xiaohui Wang3Yunfei Yan4Zhe Zhao5Lisong Zhang6Zhanyang Yu7Hao Li8Longyuan New Energy Co., Ltd., Yantai 265400, ChinaLongyuan New Energy Co., Ltd., Yantai 265400, ChinaLongyuan New Energy Co., Ltd., Yantai 265400, ChinaXi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, ChinaXi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, ChinaLongyuan New Energy Co., Ltd., Yantai 265400, ChinaXi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, ChinaSchool of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, ChinaSchool of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, ChinaThe harmonic content of transformers used in the field of new energy is significantly higher than that of conventional transformers, leading to an abnormal increase in transformer loss during operation. Therefore, the loss characteristics of amorphous alloy transformers are investigated in this paper. First, a measurement platform for the magnetic property of transformer cores under sinusoidal excitation is developed. The magnetization characteristics, loss characteristics and loss composition of the amorphous alloy core under sinusoidal excitation are measured and analyzed. On this basis, the traditional Steinmetz loss calculation formula is modified, and the loss calculation formula is further refined by improving its coefficients to accommodate various frequencies. Secondly, using a field-circuit coupling method, a 3D model of the transformer core is established by finite element simulation. The magnetic flux distribution and core losses are computed under both sinusoidal excitation and non-sinusoidal excitation. Finally, the impact of core rotation magnetization on the magnetic flux density is considered, and experimental errors are minimized by applying an empirical formula. The numerical model validity and accuracy are verified by comparing the simulation results with experimental data.https://www.mdpi.com/1996-1073/18/11/2698transformeramorphous alloycore lossmagnetic propertyfinite element simulation |
| spellingShingle | Peng Chen Jianwei Han Xinglong Yao Xiaohui Wang Yunfei Yan Zhe Zhao Lisong Zhang Zhanyang Yu Hao Li Modeling and Testing of 3D Wound Core Loss of Amorphous Alloy Transformer for Photovoltaic Inverter Energies transformer amorphous alloy core loss magnetic property finite element simulation |
| title | Modeling and Testing of 3D Wound Core Loss of Amorphous Alloy Transformer for Photovoltaic Inverter |
| title_full | Modeling and Testing of 3D Wound Core Loss of Amorphous Alloy Transformer for Photovoltaic Inverter |
| title_fullStr | Modeling and Testing of 3D Wound Core Loss of Amorphous Alloy Transformer for Photovoltaic Inverter |
| title_full_unstemmed | Modeling and Testing of 3D Wound Core Loss of Amorphous Alloy Transformer for Photovoltaic Inverter |
| title_short | Modeling and Testing of 3D Wound Core Loss of Amorphous Alloy Transformer for Photovoltaic Inverter |
| title_sort | modeling and testing of 3d wound core loss of amorphous alloy transformer for photovoltaic inverter |
| topic | transformer amorphous alloy core loss magnetic property finite element simulation |
| url | https://www.mdpi.com/1996-1073/18/11/2698 |
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