Permanent Magnet Machine And Method With Reluctance Poles For High Strength Undiffused Brushless Operation.
Patent
·
OSTI ID:880729
- Oak Ridge, TN
A method and apparatus in which a rotor (11) and a stator (17) define a radial air gap (20) for receiving AC flux and at least one, and preferably two, DC excitation assemblies (23, 24) are positioned at opposite ends of the rotor (20) to define secondary air gaps (21, 22). Portions of PM material (14a, 14b) are provided as boundaries separating the rotor pole portions (12a, 12b) of opposite polarity from other portions of the rotor (11) and from each other to define PM poles (12a, 12b) for conveying the DC flux to or from the primary air gap (20) and for inhibiting flux from leaking from the pole portions prior to reaching the primary air gap (20). The portions of PM material (14a, 14b) are spaced from each other so as to include reluctance poles (15) of ferromagnetic material between the PM poles (12a, 12b) to interact with the AC flux in the primary-air gap (20).
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-00OR22725
- Assignee:
- UT-Battelle LLC (Oak Ridge, TN)
- Patent Number(s):
- 6,972,504
- Application Number:
- 11/019075
- OSTI ID:
- 880729
- Country of Publication:
- United States
- Language:
- English
Similar Records
High strength undiffused brushless machine and method
Permanent magnet machine and method with reluctance poles and non-identical PM poles for high density operation
High-Strength Undiffused Brushless (HSUB) Machine
Patent
·
2009
·
OSTI ID:986577
Permanent magnet machine and method with reluctance poles and non-identical PM poles for high density operation
Patent
·
2010
·
OSTI ID:1176305
High-Strength Undiffused Brushless (HSUB) Machine
Conference
·
2007
·
OSTI ID:958876