The invention discloses a
magnetic flux feedback suspension control method and device of an EMS type low-speed aerotrain. The method comprises the following implementation steps: collecting and obtaining the
magnetic flux density at the position of a suspension gap through a
magnetic flux induction coil a, and collecting the suspension accelerated speed and the suspension gap; calculating a suspension
system control rate according to the magnetic flux density, the suspension accelerated speed and the suspension gap; generating a
closed loop to control
PWM signals according to the suspension
system control rate, and respectively outputting the
PWM signals to a PWM
driving circuit to adjust the suspension force between a suspension
electromagnet and a track. The device comprises a sensor set, a data collection board, a suspension controller and the PWM
driving circuit, wherein the sensor set, the data collection board, the suspension controller and the PWM
driving circuit are sequentially connected. The method and device have the advantages of being good in suspension control stability, high in sensitivity, low in control bandwidth, capable of improving the stability and robustness of the suspension
control system, simple, easy to implement, strong in anti-jamming capability, good in expandability, and flexible in implementation.