Drive systems with permanent magnet synchronous motors

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Automotive Engineering

OSTI ID:37082

Eriksson, S

This article reports that simulations indicate that a 15% longer electric-vehicle driving range is possible with permanent magnet synchronous motor drive systems compared with asynchronous types. The simplified driveline made possible by a permanent magnet design more than offsets its extra cost. A number of electric-motor types are suitable for electric-vehicle drive systems, one being the permanent magnet (PM) motor. The available of powerful PM materials, the choice of a high number of poles, and the possibility of field weakening are all essential factors for high-performance PM motors. Except for the magnets, PM motor designs are similar to other types of ac motors, and can use the same inverters as other ac motors. Tests and simulations of vehicle drive cycles have indicated that a substantially greater driving range is possible when PM motor drive systems are used. Due to the magnets, the cost of such systems is somewhat higher, but this can be compensated for by improved performance and simplified installation.

• OSTI ID: 37082
• Journal Information: Automotive Engineering, Journal Name: Automotive Engineering Journal Issue: 2 Vol. 103; ISSN 0098-2571; ISSN AUEGBB
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
ELECTRIC MOTORS
ELECTRIC-POWERED VEHICLES
ENERGY CONSERVATION
ENERGY EFFICIENCY
FUEL CONSUMPTION
PERMANENT MAGNETS