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Comparison of the Electromagnetic Characteristics of a Novel Gramme Winding and a Concentrated Winding Tubular Permanent-Magnet Linear Generator

Author

Listed:
  • Haichao Feng

    (School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China)

  • Jinsong Wei

    (School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China)

  • Jikai Si

    (College of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Zhiping Cheng

    (College of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Chun Gan

    (School of Electrical and Electronic Engineering, Huazhong University of Science & Technology, Wuhan 430074, China)

  • Xiaozhuo Xu

    (School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China)

Abstract

A tubular permanent-magnet linear generator is suitable for direct drive wave energy conversion owing to its simple structure, easy maintenance and high efficiency. In this study, a novel Gramme winding tubular permanent-magnet linear generator (GW) is designed to increase power density. First, the structure of the Gramme winding and concentrated winding tubular permanent-magnet linear generator is introduced and the operation principle of the generator is analysed. Second, the initial parameters of GW are determined based on the similar overall dimensions to those of the concentrated winding tubular permanent-magnet linear generator. Third, the air gap flux density, external characteristics, voltage regulation, output power, and loss of the two generators are compared. Finally, the DC load capacities of the two generators are compared based on a three-phase full-control bridge rectifying circuit. The results show that the GW has a higher power density than the latter.

Suggested Citation

  • Haichao Feng & Jinsong Wei & Jikai Si & Zhiping Cheng & Chun Gan & Xiaozhuo Xu, 2020. "Comparison of the Electromagnetic Characteristics of a Novel Gramme Winding and a Concentrated Winding Tubular Permanent-Magnet Linear Generator," Energies, MDPI, vol. 13(22), pages 1-14, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:22:p:5943-:d:444907
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