Substantially parallel flux uncluttered rotor machines
A permanent magnet-less and brushless synchronous system includes a stator that generates a magnetic rotating field when sourced by polyphase alternating currents. An uncluttered rotor is positioned within the magnetic rotating field and is spaced apart from the stator. An excitation core is spaced apart from the stator and the uncluttered rotor and magnetically couples the uncluttered rotor. The brushless excitation source generates a magnet torque by inducing magnetic poles near an outer peripheral surface of the uncluttered rotor, and the stator currents also generate a reluctance torque by a reaction of the difference between the direct and quadrature magnetic paths of the uncluttered rotor. The system can be used either as a motor or a generator
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-00OR22725
- Assignee:
- UT Batelle, LLC (Oakridge, TN)
- Patent Number(s):
- 8,330,319
- Application Number:
- 12/466,169
- OSTI ID:
- 1082359
- Country of Publication:
- United States
- Language:
- English
Five-phase interior permanent magnet motor with low torque pulsation
|
conference | January 2005 |
Similar Records
Permanent-magnet-less machine having an enclosed air gap
Wound Field and Hybrid Synchronous Machines for EV Traction with Brushless Capacitive Rotor Field Excitation (Final Report)