A combined system of propulsion and guidance by linear synchronous motors

This paper describes the principle, various characteristics and test results of a combined system of propulsion and guidance by linear synchronous motors (CSPG) suitable for high speed levitated trains. The CSPG proposed here is a very economic system without usual guidance coils on the track. Instantaneous propulsion and guidance forces are obtained by computer simulation, and it is found how the train displacement, phase angle of the armature current and train speed affect the characteristics of a CSPG. It is also found that the computed results agree with the test results, of the rotating experimental facility.