Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind Power
[Introduction] Low-frequency alternating current power transmission technology has attracted wide attention. Although its theoretical research continues to go deeper, there are still many problems to be solved before its engineering implementation in large-capacity long-distance offshore wind power...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Energy Observer Magazine Co., Ltd.
2023-09-01
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| Series: | 南方能源建设 |
| Subjects: | |
| Online Access: | https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2023.05.017 |
| _version_ | 1797688969877520384 |
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| author | Xi YANG Xiang TANG Jutian LI Ying LU Ying CHEN |
| author_facet | Xi YANG Xiang TANG Jutian LI Ying LU Ying CHEN |
| author_sort | Xi YANG |
| collection | DOAJ |
| description | [Introduction] Low-frequency alternating current power transmission technology has attracted wide attention. Although its theoretical research continues to go deeper, there are still many problems to be solved before its engineering implementation in large-capacity long-distance offshore wind power transmission scenarios. The development and selection of offshore low-frequency main transformer is one of such problems. [Method] Based on the detailed description of the structure and working principle of the low-frequency alternating current transmission system for offshore wind power, the low-frequency operation characteristics of the offshore main transformer were analyzed. [Result] If the transformer is transformed by increasing the core section and winding turns, the weight, volume and total loss of the low-frequency transformer will be increased greatly, which will have a great impact on the economy of the overall transmission scheme of offshore wind power and the load and layout of offshore step-up station. It is necessary to study the miniaturization, light weight and low loss design of offshore low-frequency transformer. [Conclusion] The key transformation technologies of offshore low-frequency transformer are discussed in detail. In the aspect of transformer core, the research and development of high-performance oriented silicon steel sheet with high magnetic density or low loss is the most concerned low-frequency transformer transformation technology. With the offshore advantages, the design of water cooling mode and intelligently monitored transformer cooling mode can also optimize the overall quality and volume of transformer. Ester high ignition point insulated oil transformer has the advantages of biodegradability, inflammability and high reliability of oil, which means that it is more suitable for offshore low-frequency transformer compared with the conventional mineral oil transformer. The future development of the above key technologies is expected to provide reference for the development and application of large-capacity and high-voltage class offshore low-frequency transformer, so as to promote the engineering practice of low-frequency technology in the field of large-capacity long-range offshore wind power transmission. |
| first_indexed | 2024-03-12T01:39:08Z |
| format | Article |
| id | doaj.art-75a0900111714b0b89dece012b41b7db |
| institution | Directory Open Access Journal |
| issn | 2095-8676 |
| language | English |
| last_indexed | 2024-03-12T01:39:08Z |
| publishDate | 2023-09-01 |
| publisher | Energy Observer Magazine Co., Ltd. |
| record_format | Article |
| series | 南方能源建设 |
| spelling | doaj.art-75a0900111714b0b89dece012b41b7db2023-09-11T01:56:20ZengEnergy Observer Magazine Co., Ltd.南方能源建设2095-86762023-09-0110513914810.16516/j.gedi.issn2095-8676.2023.05.0172023-017Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind PowerXi YANG0Xiang TANG1Jutian LI2Ying LU3Ying CHEN4China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, Guangdong, ChinaChina Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, Guangdong, ChinaChina Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, Guangdong, ChinaChina Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, Guangdong, ChinaChina Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, Guangdong, China[Introduction] Low-frequency alternating current power transmission technology has attracted wide attention. Although its theoretical research continues to go deeper, there are still many problems to be solved before its engineering implementation in large-capacity long-distance offshore wind power transmission scenarios. The development and selection of offshore low-frequency main transformer is one of such problems. [Method] Based on the detailed description of the structure and working principle of the low-frequency alternating current transmission system for offshore wind power, the low-frequency operation characteristics of the offshore main transformer were analyzed. [Result] If the transformer is transformed by increasing the core section and winding turns, the weight, volume and total loss of the low-frequency transformer will be increased greatly, which will have a great impact on the economy of the overall transmission scheme of offshore wind power and the load and layout of offshore step-up station. It is necessary to study the miniaturization, light weight and low loss design of offshore low-frequency transformer. [Conclusion] The key transformation technologies of offshore low-frequency transformer are discussed in detail. In the aspect of transformer core, the research and development of high-performance oriented silicon steel sheet with high magnetic density or low loss is the most concerned low-frequency transformer transformation technology. With the offshore advantages, the design of water cooling mode and intelligently monitored transformer cooling mode can also optimize the overall quality and volume of transformer. Ester high ignition point insulated oil transformer has the advantages of biodegradability, inflammability and high reliability of oil, which means that it is more suitable for offshore low-frequency transformer compared with the conventional mineral oil transformer. The future development of the above key technologies is expected to provide reference for the development and application of large-capacity and high-voltage class offshore low-frequency transformer, so as to promote the engineering practice of low-frequency technology in the field of large-capacity long-range offshore wind power transmission.https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2023.05.017low-frequency alternating current power transmissionoffshore wind poweroffshore low-frequency transformerminiaturizationsilicon steel sheetcoolingester high ignition point insulated oil |
| spellingShingle | Xi YANG Xiang TANG Jutian LI Ying LU Ying CHEN Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind Power 南方能源建设 low-frequency alternating current power transmission offshore wind power offshore low-frequency transformer miniaturization silicon steel sheet cooling ester high ignition point insulated oil |
| title | Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind Power |
| title_full | Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind Power |
| title_fullStr | Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind Power |
| title_full_unstemmed | Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind Power |
| title_short | Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind Power |
| title_sort | characteristics analysis and technical prospect of low frequency main transformer for offshore wind power |
| topic | low-frequency alternating current power transmission offshore wind power offshore low-frequency transformer miniaturization silicon steel sheet cooling ester high ignition point insulated oil |
| url | https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2023.05.017 |
| work_keys_str_mv | AT xiyang characteristicsanalysisandtechnicalprospectoflowfrequencymaintransformerforoffshorewindpower AT xiangtang characteristicsanalysisandtechnicalprospectoflowfrequencymaintransformerforoffshorewindpower AT jutianli characteristicsanalysisandtechnicalprospectoflowfrequencymaintransformerforoffshorewindpower AT yinglu characteristicsanalysisandtechnicalprospectoflowfrequencymaintransformerforoffshorewindpower AT yingchen characteristicsanalysisandtechnicalprospectoflowfrequencymaintransformerforoffshorewindpower |