Simulation Study of Parallel Permanent Magnet Electromagnetic Hybrid Suspension System

The paper proposes a parallel hybrid levitation structure for the uncontrollable levitation problem faced by the rail transportation mechanism of repulsive type levitation realized by rare earth permanent magnet array. In the ANSYS simulation environment, the mechanical characteristics of the repulsive levitation structure based on Halbach permanent magnet array are analyzed, and the nonlinear distribution characteristics of the static magnetic field also make the levitation mechanism have nonlinear mechanical relationship and large levitation drop, the vehicle attitude within the controllable range does not affect the permanent magnetic levitation capability. The dynamic performance adjustment effect of the mechanical damping structure and the electromagnetic damping structure on the permanent magnet suspension array is explored through systematic simulation classification. The active control ability of the electromagnetic damping system makes the permanent magnet suspension system have controllability and stability. The relationship between the electromagnetic damping system and the vehicle permanent magnet on the levitation guidance performance under the influence of spatial position factors is investigated, and the results show that the electromagnetic damping system cannot achieve the synergistic control of two degrees of freedom, but the additional electromagnetic damping constraint can effectively solve the control problem of permanent magnet levitation and improve the levitation stiffness to suppress the problems of large oscillation dropout and fast magnetic energy decay.