Control of New PM LSM Maglev Vehicle Based on Analysis of Pitching Torque and Propulsion Force

The one of the authors Dr. K. Yoshida has been proposed a new controlled-repulsive Maglev vehicle, which can levitate, propel and guide simultaneously from a standstill, independently of the vehicle speeds. A combined levitation-propulsion-guidance control experiment using LSM only in the PM LSM controlled-repulsive Maglev model vehicle has been succeeded. But the pitching motion could not be restrained sufficiently in the conventional control method. In this paper, a new control method which is based on the analysis of the pitching torque taking into account the mechanical load-angle is proposed. The validity of the new control method is verified by running control experiments.