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Comparative Analysis and Experimental Verification of a Linear Tubular Generator for Wave Energy Conversion

Author

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  • Tao Xia

    (School of Electrical Engineering, Southeast University, Nanjing 210096, China)

  • Haitao Yu

    (School of Electrical Engineering, Southeast University, Nanjing 210096, China)

  • Zhenchuan Shi

    (School of Electrical Engineering, Southeast University, Nanjing 210096, China
    Quanzhou Institute of Equipment Manufacturing Haixi Institutes, Chinese Academy of Sciences, Jinjiang 362200, China)

  • Rong Guo

    (School of Electrical Engineering, Southeast University, Nanjing 210096, China)

Abstract

To improve the power density and reliability of radial (RS-TLPMG) and quasi-Halbach (QH-TLPMG) magnetization tubular linear surface-mounted permanent magnet generators under realistic sea-state conditions, a novel tubular linear generator with multilayer interior permanent magnets (MI-TLPMG) for wave energy conversion is proposed and analyzed in this paper. Using finite element analysis (FEA), a comprehensive comparison of air gap flux density, flux linkage, back electromotive force (back-EMF), load, and no-load performance is investigated to verify the advantages of the proposed machine. The FEA results indicate that MI-LTPMG with a flux-concentrating effect has higher back-EMF, air gap magnetic flux density, flux linkage, and output power than do the other two machines. Finally, a prototype is manufactured and measured on the test platform and wave tank. The experiment and simulation results show a great agreement with each other.

Suggested Citation

  • Tao Xia & Haitao Yu & Zhenchuan Shi & Rong Guo, 2018. "Comparative Analysis and Experimental Verification of a Linear Tubular Generator for Wave Energy Conversion," Energies, MDPI, vol. 11(7), pages 1-16, July.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:7:p:1707-:d:155505
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    References listed on IDEAS

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    Cited by:

    1. 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).
    2. Minh-Trung Duong & Yon-Do Chun & Deok-Je Bang, 2018. "Improvement of Tubular Permanent Magnet Machine Performance Using Dual-Segment Halbach Array," Energies, MDPI, vol. 11(11), pages 1-10, November.

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