Kein Folientitel

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INNOVATIVE TRAINTECHNOLOGY
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CONTENTS

• MAGLEV
• INNOVATIVE TRAIN TECHNOLOGY
• MAGLEV TERMINOLOGY
• TYPES OF MAGLEV
• COMPARISON
• SAFETY
• FUTURE UTILITY

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Maglevs (Magnetically levitated trains)
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INTRODUCTION

• The principal of a Magnet train is that floats on
  a magnetic field and is propelled by a linear
  induction motor. They follow guidance tracks with
  magnets. These trains are often referred to as
  Magnetically Levitated trains which is
  abbreviated to Maglev

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MAGLEV WHAT ??

• MAGNETIC LEVITATION MAGLEV
• OPPOSITE ATTRACT
• LIKE REPEL
• LEVITATION is derived from levis means light.

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LEVITATION PHENOMENA
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LEVATION

• A small (6mm) piece of pyrolytic graphite
  levitating over a permanent neodymium magnet
  array (5mm cubes on a piece of steel).

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APPLICATIONS

• RAIL GUN
• MAGNETIC FLOATERS
• PROPULSION OF ROCKETS
• MAGLEV TRAINS

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MAGLEV TRAINS

• INNOVATIVE TRAIN
• TECHNOLOGY
• FRICTION FREE TRAVEL.
• HIGH SPEED
• ACCELERATION
• CARRIES NO ENGINE
• SAFETY COMFORT

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INTERNAL WORKING
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Comparison of Systems Railroad / MAGLEV
Titel
Wheel-on-rail
Electromagnetic Levitation
Guidance
Propulsion
Propulsion
Support
Support
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TYPES OF MAGLEV

• ATTRACTION TYPE
• EMS-Electro-magnetic Suspension (Developed By
  Transrapid Germany)
• REPULSION TYPE
• EDS-Electro-dynamic Suspension (Developed By
  Japan)
• INDUCTRACK (Developed by USA)

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Electromagnetic Suspension (EMS)
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System Components of EMS
Electromagnetic Levitation
Stator Pack
Guidance Magnet Eddy Current Brake
Support Magnet Linear Generator
Guidance Rail
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SENSOR ARRANGEMENT
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LINEAR SYNCHRONOUS MOTOR

• A simple motors Stator is when Cut open and
  flattened it becomes a Linear Motor.
• Instead of producing a Rotational Torque it
  produces a Linear force and thus is practically
  suited to MAGLEV operation.
• Speed control is achieved by Frequency control or
  by varying the field Excitation by changing the
  current direction.
• There is reaction plate in which the current is
  induced, thus producing Horizontal motion

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LINEAR SYNCHRONOUS MOTOR
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Propulsion Principle of EMS
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GUIDEWAY TYPES
At-grade guideway Typ III
1,25-3,5 m
Elevated guideway Typ II
49,536 m
Elevated guideway Type I
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Worlds first commercial MAGLEV
SHANGHAI MAGLEV, Top speed 400 Km/Hr. Developed
by TRANSRAPID, Germany
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Electrodynamic Suspension(EDS)

• Built by RTRI,Japan
• Uses a Super conducting Magnet.
• Linear Synchronous Motor Application.
• Repulsion Type.
• Guideway clearance is up to 10 cm.
• Expensive system

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Propulsion Principle of EDS

• A repulsive force and an attractive force
  induced between the magnets are used to propel
  the vehicle (superconducting magnet). The
  propulsion coils located on the sidewalls on both
  sides of the guideway are energized by a
  three-phase alternating current from a
  substation, creating a shifting magnetic field on
  the guideway. The on-board superconducting
  magnets are attracted and pushed by the shifting
  field, propelling the Maglev vehicle.

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Guideway Structure of EDS
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Super Conducting Magnets and their cooling.

• At one end of the tank is the
  integrally-attached on-board refrigerator, which
  serves to re-liquefy the helium gas once
  vaporized by regular heat absorption and external
  disturbances during running.

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EDS
Developed by RTRI, Japan. TOP SPEED 581 Km/Hr,
REPULSION Type
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Differences in brief EDS EMS

• EMS is Attraction type whereas EDS is Repulsion
  type.
• Guideway clearance EMS- Upto 3/8 and EDS-Upto
  4.
• Control Circuitry EMS-on board (Power Ec.
  Control) EDS-External Control.
• Guideway Structure EDS has much Complex and
  expensive construction than EMS.
• Magnets EMS-electromagnets powered by
  continuously charged Batteries,
  EDS-Superconducting Magnets which need cooling
  arrangement.
• TOP SPEED EMS-450 Km/Hr, EDS-581 Km/Hr
• EDS needs wheels at start but the EMS doesnt.

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INDUCTRACK TECHNOLOGY

• Developed by USA.
• Based on Halbach array concept.
• REPULSION TYPE.
• Permanent Magnets
• Rests on wheel when stationary.
• Permanent magnets lift upto 50 times weight.
• Currently under R D.

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LONGSTATOR PROPULSION SWITCHING
Motor Section Switched Off
Activated Motor Section
Motor Section Switched Off
Energy Supply
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ADVANTAGES OF MAGLEV OVER CONVENTIONAL RAIL
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COMPARISON PROPULSION SYSTEMS
Transrapid (Track-mounted drive)
Gradient (max. 10)
Railroad (Vehicle-mounted drive)
Gradient (max. 4)
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Transrapid/ICE Acceleration distance to 300 km/h
(185 mph)
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LAND CONSUMPTION
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SPECIFIC ENERGY CONSUMPTION
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SPECIFIC CO2 EMISSIONS
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Transrapid 08
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