Structural Optimization and Electromagnetic Performance Research of Axial Magnetic Field Tidal Current Generators
Tidal energy, as a stable and predictable renewable energy source, is garnering increasing attention. However, tidal energy generation faces challenges such as low energy conversion efficiency and high mechanical losses in low-velocity environments. To address these issues, this paper proposes a nov...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/10/2520 |
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| author | Wenzhou Liu Jinghuan Yang Lixin Pei Mohammad Rafiei Yilong Yang Yuliang Wang Jiacheng Cui Yun Guo Baowen Zhang |
| author_facet | Wenzhou Liu Jinghuan Yang Lixin Pei Mohammad Rafiei Yilong Yang Yuliang Wang Jiacheng Cui Yun Guo Baowen Zhang |
| author_sort | Wenzhou Liu |
| collection | DOAJ |
| description | Tidal energy, as a stable and predictable renewable energy source, is garnering increasing attention. However, tidal energy generation faces challenges such as low energy conversion efficiency and high mechanical losses in low-velocity environments. To address these issues, this paper proposes a novel design for a tidal energy generator based on an axial field coreless structure. This design significantly reduces mechanical losses and enhances energy conversion efficiency by employing a direct-drive structure and a coreless stator. Additionally, the introduction of a Halbach array permanent magnet and soft magnetic composite further optimizes the generator’s electromagnetic performance, thereby increasing power output. Simulation results demonstrate that the designed generator can achieve a power output of 300 W at a tidal velocity of 1.8 m/s, with an average generation efficiency of 90.6%. This design exhibits excellent performance in low-velocity tidal environments and provides valuable technical support for the design of tidal energy generators. |
| format | Article |
| id | doaj-art-37a783b384464f70a7a2e4e7aa3561a1 |
| institution | DOAJ |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-37a783b384464f70a7a2e4e7aa3561a12025-08-20T03:14:46ZengMDPI AGEnergies1996-10732025-05-011810252010.3390/en18102520Structural Optimization and Electromagnetic Performance Research of Axial Magnetic Field Tidal Current GeneratorsWenzhou Liu0Jinghuan Yang1Lixin Pei2Mohammad Rafiei3Yilong Yang4Yuliang Wang5Jiacheng Cui6Yun Guo7Baowen Zhang8School of Electrical and Information Engineering, Changchun University of Architecture and Civil Engineering, Changchun 130607, ChinaChangchun Institute of Technology, Changchun 130012, ChinaChangchun Institute of Technology, Changchun 130012, ChinaItalian National Research Council Institute of Marine Engineering, 00128 Rome, ItalyChangchun Institute of Technology, Changchun 130012, ChinaChangchun Institute of Technology, Changchun 130012, ChinaChangchun Institute of Technology, Changchun 130012, ChinaChangchun Institute of Technology, Changchun 130012, ChinaChangchun Kunpeng Energy Saving and Environmental Protection Technology Co., Changchun 130200, ChinaTidal energy, as a stable and predictable renewable energy source, is garnering increasing attention. However, tidal energy generation faces challenges such as low energy conversion efficiency and high mechanical losses in low-velocity environments. To address these issues, this paper proposes a novel design for a tidal energy generator based on an axial field coreless structure. This design significantly reduces mechanical losses and enhances energy conversion efficiency by employing a direct-drive structure and a coreless stator. Additionally, the introduction of a Halbach array permanent magnet and soft magnetic composite further optimizes the generator’s electromagnetic performance, thereby increasing power output. Simulation results demonstrate that the designed generator can achieve a power output of 300 W at a tidal velocity of 1.8 m/s, with an average generation efficiency of 90.6%. This design exhibits excellent performance in low-velocity tidal environments and provides valuable technical support for the design of tidal energy generators.https://www.mdpi.com/1996-1073/18/10/2520low-velocity tidal energy generationaxial field coreless generatorHalbach array permanent magnetsoft magnetic compositedirect-drive structureelectromagnetic performance optimization |
| spellingShingle | Wenzhou Liu Jinghuan Yang Lixin Pei Mohammad Rafiei Yilong Yang Yuliang Wang Jiacheng Cui Yun Guo Baowen Zhang Structural Optimization and Electromagnetic Performance Research of Axial Magnetic Field Tidal Current Generators Energies low-velocity tidal energy generation axial field coreless generator Halbach array permanent magnet soft magnetic composite direct-drive structure electromagnetic performance optimization |
| title | Structural Optimization and Electromagnetic Performance Research of Axial Magnetic Field Tidal Current Generators |
| title_full | Structural Optimization and Electromagnetic Performance Research of Axial Magnetic Field Tidal Current Generators |
| title_fullStr | Structural Optimization and Electromagnetic Performance Research of Axial Magnetic Field Tidal Current Generators |
| title_full_unstemmed | Structural Optimization and Electromagnetic Performance Research of Axial Magnetic Field Tidal Current Generators |
| title_short | Structural Optimization and Electromagnetic Performance Research of Axial Magnetic Field Tidal Current Generators |
| title_sort | structural optimization and electromagnetic performance research of axial magnetic field tidal current generators |
| topic | low-velocity tidal energy generation axial field coreless generator Halbach array permanent magnet soft magnetic composite direct-drive structure electromagnetic performance optimization |
| url | https://www.mdpi.com/1996-1073/18/10/2520 |
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