What is Magnetic Levitation Systems?

High-speed Maglev trains use magnetic levitation, which is well known for. In addition to this, magnetic levitation is used in manufacturing processes for metallic slabs and molten metals, frictionless magnetic bearings, and wind tunnel models. The medical industry likewise has revolving applications.
 
There are two options available if power transfer to a rotating section is necessary: using slip rings or contactless power transfer technology. The process must be separated from the human body for systems created for medical applications like biomedical detection. Otherwise, some of the test units and equipment pose a risk to people.
 
Systems using maglev are quite unreliable. Controllers made to stabilize the system should be resistant to changes in parameters and outside disturbances. The result was a non-linear third-order model that took into account all electrical characteristics.
 

For regulating the position of the Maglev, several conventional controllers have been developed. Maglev is stabilized and controlled by feedback linearization, state feedback controller, phase lead compensator, 2-DOF PID controller, and feed-forward linearization controller.
 
It is always necessary to know the precise system parameters in feedback linearizing control. Due to the awkward placement of the closed loop transfer function zeros, PID controllers typically exhibit significant overshoots in the response and control inputs for highly unstable systems like Maglev.