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how maglev trains works
MAGNETIC LEVITATION
AND TRAINS

BY:
MANISH KUMAR
2K12/EE/075
Delhi Technological
University

INTRODUCTION
MAGLEV = MAGNETIC + LEVITATION
Magnetic means “based on magnets”
Levitation means “to rise and float in air”
Maglev is a method of propulsion that uses magnetic levitation to propel vehicles with magnets rather than with wheels that the conventional trains use.



Magnetic levitation is the use of magnetic fields to levitate a (usually) metallic object.



Manipulating magnetic fields and controlling their forces can levitate an object.



Using either Ferromagnetism or Diamagnetism object can be levitated.



A superconductor is perfectly diamagnetic and electromagnets can exhibit varying levels of ferromagnetism 

Most important application of Magnetic Levitation is
Transrapid magnetic lift trains.

BASIC PRINCIPLE OF MAGLEV
TRAINS
Maglev trains have to perform the following functions to operate in high speeds: Propulsion
 Lateral Guidance
 Levitation

MAGNETIC LEVITATION
Levitation is the phenomenon based on the basic
SYSTEM
principle of attraction and repulsion.

Magnetic Levitation is broken into three types of suspension: Electromagnetic suspension (EMS)
Electrodynamic suspension (EDS)
Inductrack

Electromagnetic
Suspension(EMS)


Electromagnetic Suspension uses electromagnets to leviate the train

Principle of Magnetic Leviation
 In the EMS-attractive system, the electromagnets which do the work of levitation are attached on the top side of a casing that extends below and then curves back up to the rail that is in the center of the track.

The rail, which is in the shape of an inverted T, is a ferromagnetic rail.
 When a current is passed through it, and the electromagnet switched on, there is attraction, and the levitation electromagnets, which are below the rail, raise up to meet the rail. The car levitates.


Principle of Propulsion
 A linear electric motor (LEM) is a mechanism which converts electrical energy directly into
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