A Machine Approach for Field Weakening of Permanent-Magnet Motors
Conference
·
OSTI ID:11022
The commonly known technology of field weakening for permanent-magnet (PM) motors is achieved by controlling the direct-axis current component through an inverter, without using mechanical variation of the air gap, a new machine approach for field weakening of PM machines by direct control of air-gap fluxes is introduced. The demagnetization situation due to field weakening is not an issue with this new method. In fact, the PMs are strengthened at field weakening. The field-weakening ratio can reach 1O:1 or higher. This technology is particularly useful for the PM generators and electric vehicle drives.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Advanced Automotive Technologies (EE-32) (US)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 11022
- Report Number(s):
- ORNL/CP-104228; TRN: AH200127%%607
- Resource Relation:
- Conference: SAE International: Future Car Congress, Arlington, VA (US), 04/02/2000--04/06/2000; Other Information: PBD: 2 Apr 2000
- Country of Publication:
- United States
- Language:
- English
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