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Design optimization of a novel linear transverse flux switching permanent magnet generator for direct drive wave energy conversion

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  • Ghaheri, Aghil
  • Afjei, Ebrahim
  • Torkaman, Hossein

Abstract

Linear transverse flux permanent magnet machines (LTFPMs) are categorized as high force density topologies, which are suitable candidates for direct drive and low-speed applications. This paper introduces a novel LTFPM topology, which also proposes advantages of the flux-switching machines. This proposed linear transverse flux switching PM machine (LTFSPM) has two long passive translators located at the armature's top and bottom sides. The topology offers a high value of force density, and also, it is a cost-effective topology due to its double-sided passive translator. Furthermore, the PMs are fully utilized in the magnetic circuit, the end winding length is negligible, and the iron cores can be laminated easily. In this paper, the operation principle of the topology is explained and its magnetic circuit is discussed. To reduce the computational time of optimization procedure, a double-layer method is adopted, which provides high robustness, low computational time, and high precision. Results of the finite element method indicate that the proposed machine can be considered a potential candidate for linear motion applications especially direct drive wave energy conversion systems, which require high force density values.

Suggested Citation

  • Ghaheri, Aghil & Afjei, Ebrahim & Torkaman, Hossein, 2022. "Design optimization of a novel linear transverse flux switching permanent magnet generator for direct drive wave energy conversion," Renewable Energy, Elsevier, vol. 198(C), pages 851-860.
    • Handle: RePEc:eee:renene:v:198:y:2022:i:c:p:851-860
    DOI: 10.1016/j.renene.2022.08.058
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    Cited by:

    1. Chunyuan, Liu & Chen, Yi & Dong, Rui & Ye, Bao-Lin, 2023. "Optimization design of Tubular Permanent Magnet Linear Generator based on entropy model for wave energy conversion," Renewable Energy, Elsevier, vol. 216(C).
    2. Li, Jian & Zuo, Zhengxing & Jia, Boru & Feng, Huihua & Mei, Bingang & Smallbone, Andrew & Roskilly, Anthony Paul, 2024. "Operating characteristics and design parameter optimization of permanent magnet linear generator applied to free-piston energy converter," Energy, Elsevier, vol. 287(C).
    3. Mei Zhao & Zhiquan Kong & Pingpeng Tang & Zhentao Zhang & Guodong Yu & Huaqiang Zhang & Yongxiang Xu & Jibin Zou, 2023. "Design and Optimization of Linear Permanent Magnet Vernier Generator for Direct Drive Wave Energy Converter," Energies, MDPI, vol. 16(7), pages 1-18, March.
    4. Ganesh Mayilsamy & Kumarasamy Palanimuthu & Raghul Venkateswaran & Ruban Periyanayagam Antonysamy & Seong Ryong Lee & Dongran Song & Young Hoon Joo, 2023. "A Review of State Estimation Techniques for Grid-Connected PMSG-Based Wind Turbine Systems," Energies, MDPI, vol. 16(2), pages 1-27, January.

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