Abstract
ABSTRACT The problem of stabilizing the airgap clearance of an electromagnetically levitated vehicle equippedwith linear synchronous motors is considered. The motors provide both propulsion and suspension. The dynamics of such a vehicle is expressed by a nonlinear state space model which takes into account the vertical and longitudinal translational motions. Expressions for both thrust and suspension forces are derived. An optimal linear state regulator is considered to stabilize the system and improve its dynamic behaviour. It acts simultaneously on the armature and field voltages of the motors. The response of a vehicle equipped with such a controller to some track defects is simulated. The effects of the introduction of an auxiliary suspension are studied.
Published Version
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