PERMANENT MAGNET AC DISC MOTOR ELECTRIC VEHICLE DRIVE

The principal objective of this work was to establish the feasibility of the axial flux permanent magnet ac disc motor with load-commutated inverter as a candidate for an electric passenger vehicle drive system component. Three motors were built in the course of the project. The first, known as the proof-of-principal (POP) motor, was built to demonstrate the electromagnetic concepts and establish design data. It was built with rare earth magnets and a dc motor type random winding. The second motor, known as the Functional Model A (FM(A)) motor, was built for full performance and high speed (11,000 rpm). Alnico 8E magnets were used to stimulate manganese-aluminum. A three-layer air gap winding was used in the stator. This motor did not perform as predicted due primarily to demagnetization of the magnets and, secondarily, to imbalance in the windings. The third motor, known as Functional Model B (FM(B)), corrected these problems by use of rare earth magnets and a novel, single-layer chain winding. The motor performed well and in excess of contract requirements electromagnetically, thermally, and mechanically. A peak efficiency of 93% was measured at cycling power when the motor was being driven by the inverter. Several modifications were proposed to raise the efficiency to 95%.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • International Congress and Exposition, Detroit, Michigan, February 28-March 4, 1983.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Kliman, G B
• Publication Date: 1983

Media Info

• Features: Figures; References; Tables;
• Pagination: 9 p.
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Economic efficiency; Electric vehicles; Engines; High speed vehicles; Inverters; Performance; Permanent magnets
• Uncontrolled Terms: Efficiency
• Old TRIS Terms: Disc motor; High speed engines
• Subject Areas: Economics; Energy; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00379707
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SAE 830111, HS-035 029
• Files: HSL, USDOT
• Created Date: Nov 30 1983 12:00AM