LINEAR SYNCHRONOUS MOTOR FEEDBACK CONTROLS

The theoretical behavior of the linear synchronous motor as a propulsion means for a high speed vehicle is considered. The performance during acceleration and steady state operation is obtained from a set of state variable equations which are solved using a digital computer. The inherent performance is oscillatory with little damping. A general feedback control scheme is presented which provides damping and control of the force angle (the angle between the vehicle field and track field). Velocity and force angle errors control voltage magnitude and frequency of the power conditioner (cycloconverter). The effectiveness of the control scheme is measured in terms of its ability to have the vehicle follow a velocity profile, to maintain a constant force angle and to eliminate fast changes in the cycloconverter output voltage. The study shows that effective damping and control of the force angle can be obtained when the cycloconverter voltage and frequency are simultaneously controlled by velocity and force angle feedback signals.

  • Availability:
  • Supplemental Notes:
    • Presented at the Joint Magnetism and Magnetic Materials/International Magnetics Conference (Intermag) in Pittsburgh, Pa., June 15-18, 1976.
  • Corporate Authors:

    Institute of Electrical and Electronics Engineers

    3 Park Avenue, 17th Floor
    New York, NY  USA  10016-5997
  • Authors:
    • Dawson, G E
    • SEN, P C
    • Clarke, D J
    • Lakhavani, S
  • Publication Date: 1976-11

Media Info

  • Features: References;
  • Pagination: p. 885-888
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00163277
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Vol. MAG-12 Conf Paper
  • Files: TRIS
  • Created Date: Oct 13 1977 12:00AM