2. CONTENTS
INTRODUCTION
TYPES OF MAGLEV TECHNOLOGY
BASIC STRUCTURE
COMPARISON WITH COMMERCIAL TRAINS
ADVANTAGES
CONCLUSION

3. INTRODUCTION
Maglev is a system of transportation that suspends, guides and
propels vehicles, predominantly trains, using magnetic
levitation from a very large number of magnets for lift and
propulsion.
The highest recorded speed is 581 km/h achieved in Japan in
2003.

4. TYPES OF MAGLEV TECHNOLOGY
There are 2 notable types of maglev technology:-
• Electromagnetic suspension(EMS)
• Electrodynamic suspension(EDS)
• Induct rack

5. ELECTROMAGNETIC SUSPENSION
 Electromagnets attached to the
train
 Has ferromagnetic stators on
the track and levitate the train.
 Has guidance magnets on the
sides
 A computer changes the
amount of current to keep the
train 1 cm from the track.
 Max speed - 438km/hr
 Has on-board battery power
supply.

6. ELECTRODYNAMIC SUSPENSION
 The first major difference between
EDS and EMS is the type of track.
 EDS uses superconducting magnets
(SCM) located on the bottom of the
train to levitate it off of the track.
 The repulsive forces between the
magnets and coils lift the train, on
average, about 4 to 6 inches above the
track,
 Requires retractable wheels at low
speed , max speed – 522km/hr

7. A NEW TRACK IN THE RUNNING
(INDUCTRACK)
This system uses an “arrangement of powerful permanent
magnets, known as a Halbach array, to create the levitating
force”.
MODEL OF THE INDUCTRACK

8. BASIC STRUCTURE
Maglev Consist of Three parts
1)Levitation
2)Guidance
3)Propulsion

9. LEVITATION
In EDS , levitation coils levitate the train 10cm above the
track. Levitates when speed reaches 100km/hr
In EMS , stator & support magnet levitate the train 1cm above
the track. Levitates even when train is not moving.

10. GUIDANCE
Some systems use Null Current system
In EDS when the vehicle is in straight line , no current flows
When it moves off the line this creates changing flux,
generating a field that pushes and pulls it back to the line.
Some systems use coils that try to remain in the null flux point
between repulsive magnets and reduces eddy current losses.

11. PROPULSION
EMS systems provide levitation & propulsion using onboard
linear motor.
 EDS system and Train rapid systems levitate using onboard
magnets & use propulsion coils for propulsion .
Cost of propulsion coils increase over long distances.

12. COMPARISION WITH COMMERCIAL TRAINS
Maglev trains produce less noise than a conventional train at
equivalent speeds.
Maglev is atmosphere friendly not produce toxic Smoke
Relatively very high speed than Commercial trains.
No resistance between the rail and Track so very high speed is
attainable, that's why some times Maglev is compared with
aeroplanes.

13. ADVANTAGES
Elimination of wheel and track wear providing consequent
reduction in maintenance cost.
The absence of wheels removes much noise and vibration.
It needs less power supply.
It is more safety.
It is fire resistance.

14. CONCLUSION
Maglev will have a positive impact on sustainability. Using
superconducting magnets instead of fossil fuels, it will not
emit greenhouse gases into the atmosphere.
Maglev will contribute more to our society and our planet than
it takes away. Considering everything Maglev has to offer, the
transportation of our future is on very capable tracks.