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MAGLEV

MAGLEV. An introduction to Magnetic Levitation and its applications. Problem. Current land transportation is slow Land is limited by friction Flying is expensive Air and land travel takes up a lot of fuel. Solution. Reduce friction for land travel “Hover” just over the railroad tracks

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MAGLEV

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  1. MAGLEV An introduction to Magnetic Levitation and its applications

  2. Problem • Current land transportation is slow • Land is limited by friction • Flying is expensive • Air and land travel takes up a lot of fuel

  3. Solution • Reduce friction for land travel • “Hover” just over the railroad tracks • Process is simpler than making a plane fly • Staying on land is safer

  4. Implementation • Strong magnets on moving car • Magnetic forces hold car in position • Vertically • Inclining or declining track • Weight distribution changing • Horizontally • Wind forces • Turning

  5. Superconducting Magnets • Superconducting magnets on train induce current on conducting sheet • Induced currents generate magnetic repulsive force • In conducting sheet guideway there are power losses in sheet • Slightly corrected by making small conducting loops • Still significant losses…

  6. A Better Design • James Powell, and Gordon Danby invented the “Null-Flux” system • When the vehicle is at the symmetry point of the loop, the net magnetic flux through the loop circuit is zero

  7. Forward Propulsion • No connection with track • Linear Synchronous Motor used • AC current in windings in the guideway • Speed in controlled by frequency of the AC power • High efficiency because only the section of track that the train is on needs current

  8. The MagLifter

  9. Conclusion • There’s definitely a better way to travel • Currently test tracks are being built in America • Maglev transportation has a questionable future

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