Abstract
This paper presents test results of a new motor integrated permanent magnet gear and clarifies a path for future optimizations. The prototype, which fabrication also is described, is initially targeting electrical traction for vehicles. Basic measured parameters in form of back-emf, stall torque and inductances are all in line with finite element calculations. However very high rotational losses are present in the prototype and these losses are higher than the calculations. Some of the losses are present due to poor aspects in the fabrication of the prototype, while others are identified to be caused by a non optimal diameter/length aspect ratio. The torque density is superior, the copper losses is only a fraction of the copper losses in other traction motors. With the proposed aspects to reduce the rotational losses is it believed that the unit has a great potential.
Original language | English |
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Title of host publication | IEEE Energy Conversion Congress and Exposition (ECCE) 2011 |
Number of pages | 8 |
Publisher | IEEE Press |
Publication date | 2011 |
Pages | 3982-3989 |
ISBN (Print) | 978-1-4577-0542-7 |
DOIs | |
Publication status | Published - 2011 |
Event | IEEE Energy Conversion Congress and Exposition 2011 - Phoenix, Arizona, United States Duration: 17 Sept 2011 → 22 Sept 2011 |
Conference
Conference | IEEE Energy Conversion Congress and Exposition 2011 |
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Country/Territory | United States |
City | Phoenix, Arizona |
Period | 17/09/2011 → 22/09/2011 |
Keywords
- Magnetic gear
- PMSM
- Permanent magnet
- Core losses
- Finite element analysis
- Electric vehicle
- Direct Drive