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Optimal Stator Design of Doubly Salient Permanent Magnet Generator for Enhancing the Electromagnetic Performance

Author

Listed:
  • Vannakone Lounthavong

    (Department of Electrical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand)

  • Warat Sriwannarat

    (Department of Electrical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand)

  • Apirat Siritaratiwat

    (Department of Electrical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand)

  • Pirat Khunkitti

    (Department of Electrical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand)

Abstract

An optimal stator design technique of a three-phase doubly salient permanent magnet generator (DSPMG) for improving the output power is proposed. The stator configuration was optimally designed by adjusting the stator pole depth and stator pole arc. The trapezoid outer stator tip was also designed. Then, the output characteristics of the designed DSPMG including the flux linkage, electromotive force (EMF), harmonic, cogging torque, efficiency, magnetic flux distribution and voltage regulation were characterized by using the finite element method. Results were compared to the original structure in the literature. It was found that the flux linkage, EMF, cogging torque, and efficiency of the proposed DSPMG were significantly improved after the stator pole depth and stator pole arc were suitably modified. Further details of optimal stator pole depth and stator pole arc are presented. The EMF produced by the optimal proposed structure was 47% higher than that of the conventional structure, while 56% cogging torque improvement and 20% increased efficiency were achieved. The EMF generated by the proposed structure was classified in the high-range scale compared to the other existing models. The symmetrical magnetic flux distribution of all structures was indicated. The voltage regulation of the modified structure was also significantly improved from the conventional model. The proposed design technique can be utilized to maximize the electromagnetic performance of this particular generator type.

Suggested Citation

  • Vannakone Lounthavong & Warat Sriwannarat & Apirat Siritaratiwat & Pirat Khunkitti, 2019. "Optimal Stator Design of Doubly Salient Permanent Magnet Generator for Enhancing the Electromagnetic Performance," Energies, MDPI, vol. 12(16), pages 1-12, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:16:p:3201-:d:259351
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    References listed on IDEAS

    as
    1. Jing Zhao & Yashuang Yan & Bin Li & Xiangdong Liu & Zhen Chen, 2014. "Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles," Energies, MDPI, vol. 7(12), pages 1-20, December.
    2. Yunchong Wang & Shuangxia Niu & Weinong Fu, 2015. "Electromagnetic Performance Analysis of Novel Flux-Regulatable Permanent Magnet Machines for Wide Constant-Power Speed Range Operation," Energies, MDPI, vol. 8(12), pages 1-14, December.
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    Cited by:

    1. Warat Sriwannarat & Pattasad Seangwong & Vannakone Lounthavong & Sirote Khunkitti & Apirat Siritaratiwat & Pirat Khunkitti, 2020. "An Improvement of Output Power in Doubly Salient Permanent Magnet Generator Using Pole Configuration Adjustment," Energies, MDPI, vol. 13(17), pages 1-14, September.
    2. Pattasad Seangwong & Supanat Chamchuen & Nuwantha Fernando & Apirat Siritaratiwat & Pirat Khunkitti, 2022. "A Novel Six-Phase V-Shaped Flux-Switching Permanent Magnet Generator for Wind Power Generation," Energies, MDPI, vol. 15(24), pages 1-11, December.
    3. Vanna Torn & Pattasad Seangwong & Nuwantha Fernando & Apirat Siritaratiwat & Pirat Khunkitti, 2023. "Performance Improvement of Flux Switching Permanent Magnet Wind Generator Using Magnetic Flux Barrier Design," Sustainability, MDPI, vol. 15(11), pages 1-14, May.
    4. Chainattapol Nissayan & Pattasad Seangwong & Supanat Chamchuen & Nuwantha Fernando & Apirat Siritaratiwat & Pirat Khunkitti, 2022. "Modeling and Optimal Configuration Design of Flux-Barrier for Torque Improvement of Rotor Flux Switching Permanent Magnet Machine," Energies, MDPI, vol. 15(22), pages 1-12, November.

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