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| Content Provider | IET Digital Library |
|---|---|
| Author | Gorginpour, Hamed |
| Abstract | The Vernier permanent-magnet (VPM) machine is known as high-torque and low-speed drive solution suitable for direct-drive applications such as electric-vehicles and wind-turbines. This study presents a high-efficiency axial-flux VPM machine with dual-rotor of consequent-pole topology and one yoke-less concentrated-winding stator. The consequent-pole VPM machine is a special VPM structure that introduces high torque-density as the conventional-VPM machine incorporating a significantly lower volume of PM material. The proposed machine represents desirable features of higher efficiency, improved reliability and lower weight and axial-length compared to the traditional motor-gearbox approach. These advantages are achieved due to: dual-PM rotors for appropriate forming the magnetic flux lines and increasing torque-to-weight ratio, yokeless-stator for reducing flux path, concentrated winding with no overhang for reducing copper-loss, using rectangular-shaped copper conductors for increasing winding fill factor and selecting the core material from high-performance grain-oriented magnetic steel for reducing core-loss. After presenting the structure, the operating principles are discussed based on the magnetic flux behaviour and a quasi-3D magnetic-equivalent-circuit model is extracted. The accuracy of the analytical model is validated by comparing the results with the FE results. Finally, the effects of the design parameters on electro-magnetic performance are analytically investigated by studying a 10 kW machine. |
| Starting Page | 211 |
| Ending Page | 221 |
| Page Count | 11 |
| ISSN | 17521416 |
| Volume Number | 14 |
| e-ISSN | 17521424 |
| Issue Number | Issue 2, Feb (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/14/2 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2018.6104 |
| Journal | IET Renewable Power Generation |
| Publisher Date | 2019-11-08 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | 10 KW Machine A.C. Machine Axial-flux Dual-rotor Consequent-pole Axial-length Consequent-pole Topology Consequent-pole VPM Machine Conventional-VPM Machine D.C. Machines Design Considerations Direct-drive Application Direct-drive Energy Conversion System Drive Dual-PM Rotors Electro-magnetic Performance Finite Element Analysis Flux Path High Torque-density High-efficiency Axial-flux VPM Machine High-performance Grain-oriented Magnetic Steel High-torque Increasing Torque-to-weight Ratio Increasing Winding Fill Factor Low-speed Drive Solution Lower Volume Lower Weight Magnetic Flux Magnetic Flux Behaviour Magnetic Flux Line Permanent Magnet Machine Power 10.0 KW Quasi3D Magnetic-equivalent-circuit Model Rotors Special VPM Structure Stators Synchronous Machine Torque Traditional Motor-gearbox Approach Transportation Vernier Permanent-magnet Machine Wind-turbines |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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