THRUST AND LEVITATION FORCE OF LINEAR SYNCHRONOUS MOTORS FOR PROPULSION AND LEVITATION USE

A generalized analytic model has been proposed for the vertical ground-coil-type linear synchronous motor for propulsion and levitaton use. Mathematical expressions have been derived for calculating its thrust and levitation force characteristics. The thrust and levitation force characteristics of the motor have been analyzed assuming various waveforms of ground coil current and magnetic flux. As a result of this analysis, it has been made clear that the waveforms of magnetic flux and ground coil current have a great effect on the thrust and levitation force characteristics. Waveforms of ground-coil current and magnetic flux should be determined taking into account many factors, such as the electric power supply scheme, power conversion scheme, running characteristics of train, etc. The proposed linear synchronous motor is more suited for high-speed trains than for the low-speed trains. In the low-speed region, it is recommended to drive and suspend the train by means of different devices.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/04247760
• Corporate Authors:

  Scripta Publishing Corporation

  Investment Building
  Washington, DC  United States  20005
• Authors:
  • Saijo, T
• Publication Date: 1976-7

Media Info

• Features: References;
• Pagination: p. 67-74
• Serial:
  • Electrical Engineering in Japan
  • Volume: 96
  • Issue Number: 4
  • Publisher: Scripta Technica, Incorporated
  • ISSN: 0424-7760

Subject/Index Terms

• TRT Terms: Analysis; Electrical equipment; Intelligent transportation systems; Linear motors; Machinery; Magnetic levitation; Mathematical models; Motors; Propulsion; Synchronous motors; Theory; Traction; Vehicle power plants
• Uncontrolled Terms: Propulsion systems
• Old TRIS Terms: Advanced systems
• Subject Areas: Operations and Traffic Management; Public Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00169998
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jan 30 1978 12:00AM