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Characteristics Analysis and Comparison of a Cylindrical Linear Induction Motor with Composite Secondary Structure

Author

Listed:
  • Chunyu Du

    (Department of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150080, China)

  • Lu Zhang

    (Department of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150080, China)

  • Xu Niu

    (Department of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150080, China)

  • Kai Yang

    (Department of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150080, China)

Abstract

The cylinder linear induction motor (CLIM) is a variation of the rotary induction motor. Its structure is simple, it has a low manufacturing cost, and it can generate linear thrust without the need for a conversion mechanism. It is particularly suitable for electromagnetic catapults, magnetic levitation transport, and industrial production fields, due to its strong environmental adaptability. Designing a high-thrust and high-efficiency CLIM is a great challenge due to its inherent drawbacks, such as the low thrust density and power density of induction motors. In this article, two CLIMs with different topologies are proposed to meet the demand for control-rod drives in high-temperature and high-pressure environments. The article elucidates the topologies of the two CLIMs and proposes an analytical computational approach for the CLIM. Modern optimization algorithms were utilized to optimize the design of the structural parameters of both CLIMs. A 3D-FEA simulation was used to compare and analyze the air-gap magnetism and thrust characteristics of two CLIMs. The results indicate that the copper-ring secondary CLIM has a higher thrust density and is more suitable for use in control-rod drive mechanism (CRDM) systems.

Suggested Citation

  • Chunyu Du & Lu Zhang & Xu Niu & Kai Yang, 2024. "Characteristics Analysis and Comparison of a Cylindrical Linear Induction Motor with Composite Secondary Structure," Energies, MDPI, vol. 17(6), pages 1-12, March.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:6:p:1294-:d:1353277
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    References listed on IDEAS

    as
    1. Daniel R. Gomes & Ivan E. Chabu, 2023. "A Novel Analytical Equivalent Circuit for Single-Sided Linear Induction Motors Considering Secondary Leakage Reactance," Energies, MDPI, vol. 16(3), pages 1-16, January.
    2. Sang-Uk Park & Hyung-Soo Mok & Jae-Won Lim & Hyun-Uk Seo & Sang-Hun Oh, 2020. "Efficiency Improvement by Deriving the Optimal Operating Slip Frequency of a Linear-Induction-Style Maglev Train," Energies, MDPI, vol. 13(24), pages 1-13, December.
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