Brief introduction about Magnetic Levitation i.e; Maglev

1. MAGLEV VEHICLES
TEAM: THE EXTREMISTS
SCROLLS 2112

2. WHAT IS MAGLEV?
• High speed rail technology; train is
suspended on a magnetic cushion
above a magnetized track and so
travels free of friction.
• It travels at a speed of 400-482
kmph or higher being suspended,
guided & propelled on a magnetized
guide-way.

3. HISTORY
• 1900s :
• Ideation of friction less
train by Robert Goddard
& Emile Bachelet.
• 1937-41 :
• Basic maglev concept
was introduced.
• Series of German
patents for magnetic
levitation trains was
awarded to Hermann
Kemper.

4. TECHNOLOGICAL ASPECTS
The Maglev works on three basic concepts:
1. Levitation
2. Propulsion
3. Guidance

5. LEVITATION PROPULSION GUIDANCE
Levitation or suspension can be
achieved by:
1. EMS (Electromagnetic Suspension)
• Earnshaw’s theorem.
• Attractive Force.
2. EDS (Electrodynamic Suspension)
• Repulsive Force

6. LEVITATION PROPULSION GUIDANCE
Maglev train receives its
propulsive force by two
methods:
1. LIM - Linear Induction Motor
2. LSM – Linear Synchronous
Motor

7. LEVITATION PROPULSION GUIDANCE
• Sideward forces required for vehicle
to follow the guideway.
• Exactly analogous to Suspension
forces i.e. Attractive or Repulsive.
• Same or separate magnets can be
used to provide both lift and
guidance.

8. CONSUMPTION OF ENERGY
Energy is used in:
1. Overcoming air drag.
• Power is a function of cube of the velocity.
2. Acceleration.
• Energy required per unit distance is the function of square of the velocity.
3. Miscellaneous works such as air-conditioning, lightning, etc.

9. EFFICIENCY
• Power: Maglev – 6 MW, TGV – 8MW
• Energy: 0.4 MJ/passenger at speed of 480 kmph
• Passenger fare: Maglev - $0.03/mile, Airplane - $0.15/mile
• Guideways: No mechanical contact & wear i.e. low maintenance
Bulk purchasing of power: Cost reduces to half the cost of residential power ($0.04 -
$0.07)

10. SAFETY
Safety Features:
• Collision avoidance highest priority.
• Multiple magnet modules.
• Sensors for failure warning.
• Inverters for power failure.
• Impact protection (Upto 18kmph).

11. COMPARISON WITH OTHER MASS TRANSITS
Speed
Maintenance
Braking
Cost
Noise
Terrain
Weather
Routing
Safety
Wheeled Transit Aircraft

12. WHY MAGLEV?
• Faster trips
• High Reliability
• Petroleum Independence
• Less Polluting
• High capacity
• High safety
• Convenience
• Improved Comfort

13. CONCLUSION
The implementation cost for the project was $32M/Kilometer back when the
project started but now in this era we can reduce the cost to $12.5M/Kilometer.
With the research conducted it shows that maglev is an environment friendly,
cost-effective, alternative transportation system with significant public benefits.

14. THANK YOU! 