Maglev train has a very broad prospect because of its advantages of high speed, low energy consumption, environmental protection and safety. The normal guided maglev train can reach 400-500 km/h and the superconducting maglev train can reach 500-600 km/h, and its high speed makes it superior to flying in the travel distance of 1000 to 1500 km.
Because there are no wheels, no friction and other factors, it saves electricity by 30% compared with the most advanced high-speed train at present. At the speed of 500 km/h, the energy consumption per seat /km is only 1/3 to 1/2 of an airplane, which is 30% less than that of an automobile. Because there is no wheel-rail contact, the vibration is small and the comfort is good, but due to bumps, the maintenance cost of vehicles and tracks is also extremely high.
The maglev train will not rub against the track when it is running, so the noise is very low. Maglev trains generally pass through the flat ground or climb over the overhead hills more than 5 meters, digging mountains and ditching, which inevitably causes damage to the ecological environment. The maglev train runs on the track and is configured according to the fire protection standard of the aircraft.
Classification of maglev train
1. attraction type: it is EMS (electromagnetic levitation or normally guided levitation) technology, which levitates the vehicle through the attraction of magnets, and adopts a "T" guide rail, which looks like a monorail. The lower parts of the two sides of the vehicle surround the two sides of the guide rail, the inverted part is equipped with a strong magnetic electromagnet, and the bottom of the guide rail is equipped with a steel plate. The steel plate is above and the electromagnet is below.
2. Exclusion type: EDS (Electric Suspension or Superconducting Suspension) technology, which levitates the vehicle through the repulsive force of magnets, and adopts U-shaped guide rails, which looks like a high-speed railway. When the train moves forward, the electromagnet under the train induces current in the winding buried in the track, making the winding in the track become an electromagnet, which generates repulsive magnetic force with the magnet under the train, pushing the vehicle upward off the track.
The above contents refer to Baidu Encyclopedia-Maglev Train.