A CONTROL SYSTEM FOR THE ELECTRO-MAGNETIC LEVITATION OF A HIGH-SPEED GROUND VEHICLE

This paper deals with the control of an electro-magnetic levitating frame for the support and guidance of track-bound vehicles. At the 4 corners of the levitating frame there are guidance and support magnets allowing the 5 degrees of freedom to be controlled. The simulation model for the controller synthesis and the dynamic analysis is presented. The control configuration is given in the form of a decoupled multi-variable control for the 5 degrees of freedom. It is shown that a disturbance-variable compensation has to be provided to minimize the need for the air gap during the beginning of curves and gradients. The efficiency of the systems is investigated and the air gap and magnet voltage requirements are given as a function of the ride dynamics. It will be seen that the required ride quality can only be ensured by air gap control alone up to a certain track quality. The electro-magnetic levitating frame has been tested on a test rig under actual operating conditions. All operational track and force disturbance can be simulated by means of position and forcecontrolled hydraulic jacks. The dynamic behaviour of the test stand and simulation model are compared by experimental analysis of the system. (A). The covering abstract for the conference is IRRD no. 215903. /TRRL/

• Supplemental Notes:
  • Presented at a conference on Traffic Control and Transportation Systems.
• Corporate Authors:

  North-Holland Publishing Company

  335 Jan Van Galenstraat, P.O. Box 103
  Amsterdam,   Netherlands 
• Authors:
  • Thun, H J
  • Zimmermann, H
• Publication Date: 1974

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 565-576

Subject/Index Terms

• TRT Terms: Chassis; Comfort; Dynamics; Electricity; Emissivity; Frames; Ground transportation; Guideways; High speed ground transportation; High speed vehicles; Intelligent transportation systems; Magnetic levitation; Magnetic properties; Railroads; Ride quality; Roughness; Simulation; Speed; Testing equipment; Tracked vehicles; Vehicles
• Uncontrolled Terms: Dynamic characteristics
• Old TRIS Terms: Advanced systems; Air gaps; Guideway roughness; Railway
• ITRD Terms: 1057: Air transport network; 1353: Chassis; 9138: Comfort; 5473: Dynamics; 6954: Electricity; 3322: Frame; 6936: Magnetism; 9103: Simulation; 5408: Speed; 6247: Test rig
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; Public Transportation; Railroads; Terminals and Facilities; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00132893
• Record Type: Publication
• Source Agency: Institute of Transport
• Report/Paper Numbers: Conf Paper
• Files: ITRD, TRIS
• Created Date: Jul 13 1976 12:00AM