Magnetic levitation principle?

There are three basic principles of maglev: 1. When the magnetic field close to the metal changes, the electrons on the metal will move, and a current will be generated. 2. Magnetic effect of current. When current flows in a wire or a piece of metal, a magnetic field is created. The energized coil becomes a magnet. 3. The magnets will interact with each other, the same polarity repels each other, and the opposite polarity attracts each other.
Electromagnets are installed on the maglev train, and coils are installed at the bottom of the railway. After power-on, the polarity of the magnetic field generated by the ground coil is always the same as the polarity of the electromagnet on the train. There are also coils on both sides of the rails, and the alternating current turns the coils into electromagnets. It interacts with electromagnets on the train to move the train forward.
The high-speed maglev train is a technological invention of the 20th century, and its principle is not esoteric. It uses the magnet’s property of “same-sex repelling, opposite-sex attracting”, so that the magnet has the ability to resist the gravitational force, that is, “magnetic levitation”. Scientists have applied the principle of “magnetic levitation” to the railway transportation system, so that the train can be completely separated from the track and levitated, becoming a “wheelless” train with a speed of hundreds of kilometers per hour. This is the so-called “maglev train”.
The maglev train is mainly composed of three parts: suspension system, propulsion system and guidance system. Although magnetic-independent propulsion systems can be used, in the vast majority of current designs, the functions of these three parts are performed by magnetic forces.

Post time: Aug-06-2022