Alternative to field-weakening of surface-mounted permanent-magnet motors for variable-speed drives
Conference
·
OSTI ID:419500
- Royal Inst. of Technology, Stockholm (Sweden)
Today the interest is increasing to use inverter-fed permanent-magnet (PM) synchronous motors in variable-speed drive applications. A problem is the difficulty to obtain a sufficiently large field-weakening range. Especially for surface-mounted permanent-magnet (SMPM) motors, having the highest power density in relation to the required magnet material, this problem is very pronounced. An alternative method is studied how to obtain a sufficiently wide field-weakening range. The basic idea is to connect different coil groups of the stator winding in different configurations. In this way an extension in the speed range is obtained comparable to the field-weakening range of asynchronous motor drives. The influences on the motor design are studied and an example of a SMPM motor design is presented together with possible switching arrangements.
- OSTI ID:
- 419500
- Report Number(s):
- CONF-9510203--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Parameters and volt-ampere ratings of a synchronous motor drive for flux-weakening applications
Drive systems with permanent magnet synchronous motors
Field weakening for a doubly salient motor with stator permanent magnets
Journal Article
·
Mon Sep 01 00:00:00 EDT 1997
· IEEE Transactions on Power Electronics
·
OSTI ID:538091
Drive systems with permanent magnet synchronous motors
Journal Article
·
Tue Jan 31 23:00:00 EST 1995
· Automotive Engineering
·
OSTI ID:37082
Field weakening for a doubly salient motor with stator permanent magnets
Patent
·
Tue Oct 03 00:00:00 EDT 1995
·
OSTI ID:131955