Electromagnetic
Suspension
Courtesy of the University of Windsor
Electromagnetic Suspension(EMS) requires
both getting the train off the ground and stabilizing it
when in motion. In order to get the train off the ground
magnetic fields are used as mentioned here. The figure below
shows how the train is guided by coils and magnets that
achieve the requirements aforementioned.
Courtesy of the University of Windsor
Once the train is levitated and has guidance, it needs a propulsion system. The most common practice for propulsion and braking of a Maglev is installing a long electromagnetic stator underneath both sides of the guide-way facing the train's support electromagnets(which resemble a motor's rotor). The magnetic field direction and speed of the stator and rotor are synchronized. The Maglev can go from standstill to full speed by manipulating the alternating current. All that braking requires is reversing the direction of the traveling field. The analysis of this propulsion is explained further here.
Courtesy of the University of Windsor
Once the train is levitated and has guidance, it needs a propulsion system. The most common practice for propulsion and braking of a Maglev is installing a long electromagnetic stator underneath both sides of the guide-way facing the train's support electromagnets(which resemble a motor's rotor). The magnetic field direction and speed of the stator and rotor are synchronized. The Maglev can go from standstill to full speed by manipulating the alternating current. All that braking requires is reversing the direction of the traveling field. The analysis of this propulsion is explained further here.
Courtesy of the University of Windsor