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Performance Evaluation of a Stator Modular Ring Generator for a Shrouded Wind Turbine

Author

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  • Jefferson A. Oliveira

    (Institute of Agricultural and Technological Sciences, Mechanical Engineering, Federal University of Rondonópolis, Rondonópolis 78736-900, Brazil)

  • Ály F. Flores Filho

    (Engineering School, Electrical Engineering, Federal University of Rio Grande do Sul, Porto Alegre 90035-190, Brazil)

Abstract

This paper presents the performance evaluation of a stator modular ring permanent-magnet generator to be embedded in a shrouded wind turbine. That is done to increase the power conversion for the same turbine area when compared to more conventional ones. An adapted structure allows the assembling of the prototype, aiming to verify its performance under controlled conditions. Aiming to verify the accuracy of an analytical subdomain model for a large diameter machine, the evaluation compares the results obtained by the electromagnetic finite element method and experimental measurements. The results of the components of the air-gap flux density, back EMF and electromagnetic torque obtained by the proposed analytical model and finite-element method are in good agreement with the experimental measurements. The experimental measurements of the iron loss and copper loss show that the prototype efficiency can reach 90% approximately.

Suggested Citation

  • Jefferson A. Oliveira & Ály F. Flores Filho, 2020. "Performance Evaluation of a Stator Modular Ring Generator for a Shrouded Wind Turbine," Energies, MDPI, vol. 14(1), pages 1-17, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:67-:d:468128
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    References listed on IDEAS

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    1. Jing Zhao & Yun Zheng & Congcong Zhu & Xiangdong Liu & Bin Li, 2017. "A Novel Modular-Stator Outer-Rotor Flux-Switching Permanent-Magnet Motor," Energies, MDPI, vol. 10(7), pages 1-19, July.
    2. Yuji Ohya & Takashi Karasudani, 2010. "A Shrouded Wind Turbine Generating High Output Power with Wind-lens Technology," Energies, MDPI, vol. 3(4), pages 1-16, March.
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    Cited by:

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