Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped Windings
This paper aims to propose and compare three new structures of single-phase field excited flux switching machine for pedestal fan application. Conventional six-slot/three-pole salient rotor design has better performance in terms of torque, whilst also having a higher back-EMF and unbalanced electrom...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/8/1576 |
| _version_ | 1828120761494142976 |
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| author | Lutf Ur Rahman Faisal Khan Muhammad Afzal Khan Naseer Ahmad Hamid Ali Khan Mohsin Shahzad Siddique Ali Hazrat Ali |
| author_facet | Lutf Ur Rahman Faisal Khan Muhammad Afzal Khan Naseer Ahmad Hamid Ali Khan Mohsin Shahzad Siddique Ali Hazrat Ali |
| author_sort | Lutf Ur Rahman |
| collection | DOAJ |
| description | This paper aims to propose and compare three new structures of single-phase field excited flux switching machine for pedestal fan application. Conventional six-slot/three-pole salient rotor design has better performance in terms of torque, whilst also having a higher back-EMF and unbalanced electromagnetic forces. Due to the alignment position of the rotor pole with stator teeth, the salient rotor design could not generate torque (called dead zone torque). A new structure having sub-part rotor design has the capability to eliminate dead zone torque. Both the conventional eight-slot/four-pole sub-part rotor design and six-slot/three-pole salient rotor design have an overlapped winding arrangement between armature coil and field excitation coil that depicts high copper losses as well as results in increased size of motor. Additionally, a field excited flux switching machine with a salient structure of the rotor has high flux strength in the stator-core that has considerable impact on high iron losses. Therefore, a novel topology in terms of modular rotor of single-phase field excited flux switching machine with eight-slot/six-pole configuration is proposed, which enable non-overlap arrangement between armature coil and FEC winding that facilitates reduction in the copper losses. The proposed modular rotor design acquires reduced iron losses as well as reduced active rotor mass comparatively to conventional rotor design. It is very persuasive to analyze the range of speed for these rotors to avoid cracks and deformation, the maximum tensile strength (can be measured with principal stress in research) of the rotor analysis is conducted using JMAG. A deterministic optimization technique is implemented to enhance the electromagnetic performance of eight-slot/six-pole modular rotor design. The electromagnetic performance of the conventional sub-part rotor design, doubly salient rotor design, and proposed novel-modular rotor design is analyzed by 3D-finite element analysis (3D-FEA), including flux linkage, flux distribution, flux strength, back-EMF, cogging torque, torque characteristics, iron losses, and efficiency. |
| first_indexed | 2024-04-11T14:11:12Z |
| format | Article |
| id | doaj.art-63a75779d4ed4b319932e110b694224a |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T14:11:12Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-63a75779d4ed4b319932e110b694224a2022-12-22T04:19:42ZengMDPI AGEnergies1996-10732019-04-01128157610.3390/en12081576en12081576Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped WindingsLutf Ur Rahman0Faisal Khan1Muhammad Afzal Khan2Naseer Ahmad3Hamid Ali Khan4Mohsin Shahzad5Siddique Ali6Hazrat Ali7Department of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad Campus, University Road Abbottabad, Abbottabad 22060, PakistanDepartment of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad Campus, University Road Abbottabad, Abbottabad 22060, PakistanDepartment of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad Campus, University Road Abbottabad, Abbottabad 22060, PakistanDepartment of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad Campus, University Road Abbottabad, Abbottabad 22060, PakistanDepartment of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad Campus, University Road Abbottabad, Abbottabad 22060, PakistanDepartment of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad Campus, University Road Abbottabad, Abbottabad 22060, PakistanDepartment of Electrical Engineering, University of Engineering and Technology Peshawar, Peshawar 25120, PakistanDepartment of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad Campus, University Road Abbottabad, Abbottabad 22060, PakistanThis paper aims to propose and compare three new structures of single-phase field excited flux switching machine for pedestal fan application. Conventional six-slot/three-pole salient rotor design has better performance in terms of torque, whilst also having a higher back-EMF and unbalanced electromagnetic forces. Due to the alignment position of the rotor pole with stator teeth, the salient rotor design could not generate torque (called dead zone torque). A new structure having sub-part rotor design has the capability to eliminate dead zone torque. Both the conventional eight-slot/four-pole sub-part rotor design and six-slot/three-pole salient rotor design have an overlapped winding arrangement between armature coil and field excitation coil that depicts high copper losses as well as results in increased size of motor. Additionally, a field excited flux switching machine with a salient structure of the rotor has high flux strength in the stator-core that has considerable impact on high iron losses. Therefore, a novel topology in terms of modular rotor of single-phase field excited flux switching machine with eight-slot/six-pole configuration is proposed, which enable non-overlap arrangement between armature coil and FEC winding that facilitates reduction in the copper losses. The proposed modular rotor design acquires reduced iron losses as well as reduced active rotor mass comparatively to conventional rotor design. It is very persuasive to analyze the range of speed for these rotors to avoid cracks and deformation, the maximum tensile strength (can be measured with principal stress in research) of the rotor analysis is conducted using JMAG. A deterministic optimization technique is implemented to enhance the electromagnetic performance of eight-slot/six-pole modular rotor design. The electromagnetic performance of the conventional sub-part rotor design, doubly salient rotor design, and proposed novel-modular rotor design is analyzed by 3D-finite element analysis (3D-FEA), including flux linkage, flux distribution, flux strength, back-EMF, cogging torque, torque characteristics, iron losses, and efficiency.https://www.mdpi.com/1996-1073/12/8/1576flux switching machinemodular rotornon-overlap windingmagnetic flux analysisiron lossescopper lossstress analysisfinite element method |
| spellingShingle | Lutf Ur Rahman Faisal Khan Muhammad Afzal Khan Naseer Ahmad Hamid Ali Khan Mohsin Shahzad Siddique Ali Hazrat Ali Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped Windings Energies flux switching machine modular rotor non-overlap winding magnetic flux analysis iron losses copper loss stress analysis finite element method |
| title | Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped Windings |
| title_full | Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped Windings |
| title_fullStr | Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped Windings |
| title_full_unstemmed | Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped Windings |
| title_short | Modular Rotor Single Phase Field Excited Flux Switching Machine with Non-Overlapped Windings |
| title_sort | modular rotor single phase field excited flux switching machine with non overlapped windings |
| topic | flux switching machine modular rotor non-overlap winding magnetic flux analysis iron losses copper loss stress analysis finite element method |
| url | https://www.mdpi.com/1996-1073/12/8/1576 |
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