A superconducting maglev runs on nothing but the superconducting magnets on board and the coils in the guideway sidewalls. Three-phase current in the propulsion coils makes a travelling magnetic field, and the magnet poles on board are pulled along by that wave. The speed of the train and the speed of the field always match, so the slip is zero. That is why the diamonds in the waveform panel stay put at the zero crossing of the wave.
Levitation comes from the figure-eight null-flux coils. When a magnet passes below the centre of a coil, the upper and lower loops carry different currents and a force pushes the car up. That force grows with speed, so the train runs on wheels up to 150 km/h and then retracts them and floats about 100 mm. The same mechanism pushes the car back towards the centre when it drifts sideways, and that is the guidance force.
Drag a panel by its heading to move it, and pull an edge or a corner to change its size. Double-click the heading to switch to the fixed layout, where a single panel sits in the top right. Drag on the scene to turn the camera and use the wheel to zoom. Click Rollpie at the top left to see the other applications.