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Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings

Author

Listed:
  • Muhammad Humza

    (Department of Electric, Electronics, and Communication Engineering Education, Chungnam National University, Daejeon 34134, Republic of Korea)

  • Tanveer Yazdan

    (Department of Electrical Engineering, The University of Lahore, Lahore 54000, Pakistan)

  • Qasim Ali

    (Department of Electrical Engineering, Sukkur IBA University, Sukkur 65200, Pakistan)

  • Han-Wook Cho

    (Department of Electric, Electronics, and Communication Engineering Education, Chungnam National University, Daejeon 34134, Republic of Korea)

Abstract

This paper presents a topology for the brushless operation of a wound-rotor synchronous machine based on the subharmonic excitation technique by using two sets of multi-pole windings on the armature as well as on the rotor. The armature windings consist of a four-pole three-phase main winding and a two-pole single-phase additional winding, responsible for the generation of fundamental and subharmonic components of magnetomotive force (MMF), respectively. The rotor contains four-pole field winding and two-pole excitation winding. From the generated air gap MMF, the additional winding is responsible for induction in excitation winding, which feeds DC to the field winding through a rotating rectifier without the need of brushes. Then, the interaction of the magnetic field from the main and the field windings produces torque. The proposed topology is analyzed using 2D finite element analysis (FEM). From the analysis, the generation of the subharmonic component of MMF is verified, which helps in achieving the brushless operation of the wound-rotor synchronous machine. Furthermore, the performance of the proposed brushless multi-pole topology is compared with the existing dual three-phase winding multi-pole topology in terms of current due to induction, output torque, torque ripples, and efficiency.

Suggested Citation

  • Muhammad Humza & Tanveer Yazdan & Qasim Ali & Han-Wook Cho, 2023. "Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings," Mathematics, MDPI, vol. 11(5), pages 1-16, February.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:5:p:1117-:d:1078089
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    References listed on IDEAS

    as
    1. Syed Sabir Hussain Bukhari & Ghulam Jawad Sirewal & Faheem Akhtar Chachar & Jong-Suk Ro, 2020. "Dual-Inverter-Controlled Brushless Operation of Wound Rotor Synchronous Machines Based on an Open-Winding Pattern," Energies, MDPI, vol. 13(9), pages 1-13, May.
    2. Asif Hussain & Shahid Atiq & Byung-il Kwon, 2018. "Optimal Design and Experimental Verification of Wound Rotor Synchronous Machine Using Subharmonic Excitation for Brushless Operation," Energies, MDPI, vol. 11(3), pages 1-15, March.
    3. Syed Sabir Hussain Bukhari & Ali Asghar Memon & Sadjad Madanzadeh & Ghulam Jawad Sirewal & Jesús Doval-Gandoy & Jong-Suk Ro, 2021. "Novel Single Inverter-Controlled Brushless Wound Field Synchronous Machine Topology," Mathematics, MDPI, vol. 9(15), pages 1-13, July.
    4. Syed Sabir Hussain Bukhari & Qasim Ali & Jesús Doval-Gandoy & Jong-Suk Ro, 2021. "High-Efficient Brushless Wound Rotor Synchronous Machine Topology Based on Sub-Harmonic Field-Excitation Technique," Energies, MDPI, vol. 14(15), pages 1-17, July.
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