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Electromagnetic Performance Analysis of Novel Flux-Regulatable Permanent Magnet Machines for Wide Constant-Power Speed Range Operation

Author

Listed:
  • Yunchong Wang

    (Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, China)

  • Shuangxia Niu

    (Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, China)

  • Weinong Fu

    (Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, China)

Abstract

Two novel structures of permanent magnet (PM) machine, namely a hybrid excitation flux modulation machine (HEFMM) and a variable flux memory machine (VFMM), which have excellent field-weakening capability, are presented in this paper. The HEFMM incorporates the advantages of parallel hybrid excitation structure and flux modulation structure, so as to increase the torque density as well as increase the constant-power speed range. Inspired by the HEFMM, aiming to further improve the efficiency of machine, the VFMM with aluminum-nickel-cobalt (AlNiCo) PMs in the inner stator which can be magnetized by the current pulse of the direct current (DC) windings is developed. With double-stator structure, flux modulation effect in both machines can be employed to realize the hybrid excitation and regulate the air-gap flux density readily. The operation principle is illustrated and the static and steady performances of the machines are analyzed and compared with time stepping finite element analysis, which validates the effectiveness of the proposed designs.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:12:p:12407-13984:d:60334
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    Citations

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    Cited by:

    1. Peixin Liang & Yulong Pei & Feng Chai & Kui Zhao, 2016. "Analytical Calculation of D - and Q -axis Inductance for Interior Permanent Magnet Motors Based on Winding Function Theory," Energies, MDPI, vol. 9(8), pages 1-11, July.
    2. 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.
    3. Mohamed Nabil Fathy Ibrahim & Peter Sergeant & Essam Rashad, 2016. "Simple Design Approach for Low Torque Ripple and High Output Torque Synchronous Reluctance Motors," Energies, MDPI, vol. 9(11), pages 1-14, November.
    4. Alireza Rasekh & Peter Sergeant & Jan Vierendeels, 2016. "Development of Correlations for Windage Power Losses Modeling in an Axial Flux Permanent Magnet Synchronous Machine with Geometrical Features of the Magnets," Energies, MDPI, vol. 9(12), pages 1-17, November.
    5. 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.

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