Investigation of Open Circuit DC Winding Induced Voltage Reduction Techniques in Five Phase Non-Overlapped Wound Field Flux Switching Machines

Research output: Contribution to journal › Article › Research › peer review

Authors

  • Muhammad Yousuf
  • Faisal Khan
  • Ahmed Tameemi
  • Wasiq Ullah
  • Siddique Akbar

Research Organisations

External Research Organisations

  • Comsats University Islamabad (CUI)
  • Ministry of Higher Education and Scientific Research Iraq (MOHESR)
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Details

Original languageEnglish
Pages (from-to)45865-45878
Number of pages14
JournalIEEE ACCESS
Volume12
Early online date27 Mar 2024
Publication statusPublished - 2 Apr 2024

Abstract

The induced voltage pulsation in DC winding can generate various issues in five phase wound field flux switching (WFFS) machine such as DC current ripples, unsteady field excitation, deteriorates the DC power source and challenges for control performance of machine. In this paper, the simplest five phase WFFS machine having the 5 stator slots with 7, 6, 4 and 3 rotor poles are analyzed and investigated for open circuit DC winding induced voltage. The phenomena of the DC winding induced voltage is briefly analyzed and explained. Three reduction techniques i.e., rotor pole chamfering, rotor pole arc optimization and rotor pole axial pairing, are investigated and optimized to reduce the open circuit DC winding induced voltage and cogging torque for WFFS machine while the average electromagnetic torque is kept greater than 90% of its initial value. The Finite Element (FE) results show that the reduction achieved in peak-to-peak value of open circuit DC winding induced voltage is 70.84%, 73.65%, 70.13%, and 63.42% as compared to its initial values by performing the rotor pole chamfering for the five phase WFFS machine having the 7, 6, 4, and 3 pole rotors, respectively. For rotor pole arc optimization, DC winding induced voltage peak to peak value is effectively reduced to 60.18%, 74.91%, 64.74%, and 64.10% for the 7, 6, 4, and 3 rotor-poles machines, respectively, while its reduction for axially paired rotors is 42.70%, 68.05%, 68.64%, and 56.09%, respectively. The 5-stator-pole/6-rotor-pole five phase non-overlapped WFFS machine with the initial rotor, chamfered rotor, optimized rotor, and axially paired rotor are prototyped to validate the FE results.

Keywords

    DC windings, five phase, induced voltage, open circuit, rotor pole axial pairing, rotor pole shaping and optimization, wound field flux switching

ASJC Scopus subject areas

Cite this

Investigation of Open Circuit DC Winding Induced Voltage Reduction Techniques in Five Phase Non-Overlapped Wound Field Flux Switching Machines. / Yousuf, Muhammad; Khan, Faisal; Tameemi, Ahmed et al.
In: IEEE ACCESS, Vol. 12, 02.04.2024, p. 45865-45878.

Research output: Contribution to journal › Article › Research › peer review

Yousuf M, Khan F, Tameemi A, Ullah W, Akbar S. Investigation of Open Circuit DC Winding Induced Voltage Reduction Techniques in Five Phase Non-Overlapped Wound Field Flux Switching Machines. IEEE ACCESS. 2024 Apr 2;12:45865-45878. Epub 2024 Mar 27. doi: 10.1109/ACCESS.2024.3382211
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abstract = "The induced voltage pulsation in DC winding can generate various issues in five phase wound field flux switching (WFFS) machine such as DC current ripples, unsteady field excitation, deteriorates the DC power source and challenges for control performance of machine. In this paper, the simplest five phase WFFS machine having the 5 stator slots with 7, 6, 4 and 3 rotor poles are analyzed and investigated for open circuit DC winding induced voltage. The phenomena of the DC winding induced voltage is briefly analyzed and explained. Three reduction techniques i.e., rotor pole chamfering, rotor pole arc optimization and rotor pole axial pairing, are investigated and optimized to reduce the open circuit DC winding induced voltage and cogging torque for WFFS machine while the average electromagnetic torque is kept greater than 90% of its initial value. The Finite Element (FE) results show that the reduction achieved in peak-to-peak value of open circuit DC winding induced voltage is 70.84%, 73.65%, 70.13%, and 63.42% as compared to its initial values by performing the rotor pole chamfering for the five phase WFFS machine having the 7, 6, 4, and 3 pole rotors, respectively. For rotor pole arc optimization, DC winding induced voltage peak to peak value is effectively reduced to 60.18%, 74.91%, 64.74%, and 64.10% for the 7, 6, 4, and 3 rotor-poles machines, respectively, while its reduction for axially paired rotors is 42.70%, 68.05%, 68.64%, and 56.09%, respectively. The 5-stator-pole/6-rotor-pole five phase non-overlapped WFFS machine with the initial rotor, chamfered rotor, optimized rotor, and axially paired rotor are prototyped to validate the FE results.",
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T1 - Investigation of Open Circuit DC Winding Induced Voltage Reduction Techniques in Five Phase Non-Overlapped Wound Field Flux Switching Machines

AU - Yousuf, Muhammad

AU - Khan, Faisal

AU - Tameemi, Ahmed

AU - Ullah, Wasiq

AU - Akbar, Siddique

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AB - The induced voltage pulsation in DC winding can generate various issues in five phase wound field flux switching (WFFS) machine such as DC current ripples, unsteady field excitation, deteriorates the DC power source and challenges for control performance of machine. In this paper, the simplest five phase WFFS machine having the 5 stator slots with 7, 6, 4 and 3 rotor poles are analyzed and investigated for open circuit DC winding induced voltage. The phenomena of the DC winding induced voltage is briefly analyzed and explained. Three reduction techniques i.e., rotor pole chamfering, rotor pole arc optimization and rotor pole axial pairing, are investigated and optimized to reduce the open circuit DC winding induced voltage and cogging torque for WFFS machine while the average electromagnetic torque is kept greater than 90% of its initial value. The Finite Element (FE) results show that the reduction achieved in peak-to-peak value of open circuit DC winding induced voltage is 70.84%, 73.65%, 70.13%, and 63.42% as compared to its initial values by performing the rotor pole chamfering for the five phase WFFS machine having the 7, 6, 4, and 3 pole rotors, respectively. For rotor pole arc optimization, DC winding induced voltage peak to peak value is effectively reduced to 60.18%, 74.91%, 64.74%, and 64.10% for the 7, 6, 4, and 3 rotor-poles machines, respectively, while its reduction for axially paired rotors is 42.70%, 68.05%, 68.64%, and 56.09%, respectively. The 5-stator-pole/6-rotor-pole five phase non-overlapped WFFS machine with the initial rotor, chamfered rotor, optimized rotor, and axially paired rotor are prototyped to validate the FE results.

KW - DC windings

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KW - induced voltage

KW - open circuit

KW - rotor pole axial pairing

KW - rotor pole shaping and optimization

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