Dynamic simulation test platform and method for ultra-high-speed evacuated tube magnetic levitation (maglev) transportation

A dynamic simulation test platform for evacuated tube magnetic levitation (maglev) transportation, comprising:

• an evacuated tube;
• a vacuum maintaining system;
• a motor supporting platform;
• and
• a test train;
• wherein a first end of the evacuated tube is provided with a first isolation door, and a second end of the evacuated tube is closed;
• a second isolation door is provided inside the evacuated tube;
• and the second isolation door is configured to divide the evacuated tube into a transition section and a vacuum section;
• the vacuum maintaining system is connected to the transition section and the vacuum section;
• the motor supporting platform is provided in the evacuated tube, and extends out of the transition section;
• and the motor supporting platform is provided with a stator and a permanent-magnet track;
• a mover and a cryogenic dewar are provided at a bottom of the test train;
• a superconducting bulk is provided inside the cryogenic dewar;
• the stator is configured to be energized to generate a driving force with the mover to drive the test train forward;
• and the superconducting bulk is configured to cooperate with the permanent-magnet track to generate a levitation force;
• and
• the dynamic simulation test platform is configured for:
• performing a manual inspection on hardware equipment;
• and vacuumizing the evacuated tube to reach a first target pressure;
• starting an energy storage device of a traction-braking system to perform energy storage until the energy storage is completed;
• feeding liquid nitrogen to the cryogenic dewar;
• connecting the test train to the mover after completing the feeding of liquid nitrogen;
• transferring the test train and the mover to the transition section;
• and closing the first isolation door;
• opening a first connecting valve between the transition section and the vacuum maintaining system;
• and vacuumizing the transition section to reach a second target pressure;
• opening the second isolation door;
• opening a second connecting valve between the vacuum section and the vacuum maintaining system;
• and adjusting a pressure in the evacuated tube to the first target pressure and keeping the pressure in the evacuated tube at the first target pressure;
• starting a test and communication system to perform time synchronization and acquisition of test data;
• starting the traction-braking system for controlling the test train to accelerate, travel at a constant speed, and decelerate;
• saving the test data;
• turning off the traction-braking system and the test and communication system in turn;
• controlling a multifunctional testing vehicle to return the test train to the transition section;
• closing the second isolation door;
• restoring a pressure of the transition section to atmospheric pressure;
• opening the first isolation door;
• and moving the test train out of the transition section to a preparation section;
• if there is no other test to be conducted in a preset period of time, closing the first connecting valve and the second connecting valve;
• and closing the vacuum maintaining system to restore the pressure in the evacuated tube to the atmospheric pressure;
• and
• closing the dynamic simulation test platform when a temperature in the evacuated tube reaches an ambient temperature.