Magnetic Levitation
This project report on the design of hardware for a steel ball suspended in the air. In the ideal situation, the magnetic force produced by current from an electromagnet will counteract the weight of the steel ball. Nevertheless, the fixed electromagnetic force is very sensitive, and there is noise that creates acceleration forces on the steel ball, causing the ball to move into the balance region. The main function is to suspend the object in the air and then to balance the magnetic force and ball’s weight. According to the analytical method, the mathematical model of this magnetic levitation system was established with goal of designing the hardware. System linearization and phase lead compensation can be employed by designing the controller of this unstable non-linear system.