Levitation traction integrated system for high-efficiency magnetic-levitation train

Abstract

The invention discloses a levitation traction integrated system for high-efficiency magnetic-levitation train. The levitation traction integrated system comprises a levitation traction controller, a linear induction machine, a linear induction machine supporting beam and a power supply source. The linear induction machine comprises a secondary linear induction machine and a primary linear induction machine. The levitation traction controller, the primary linear induction machine and the power supply source are fixed to a vehicle body. The primary linear induction machine is below a rail. The secondary linear induction machine is flatly paved along the rail. The invention is the levitation traction integrated system for high-efficiency magnetic-levitation train that has a simple and compactstructure, low cost, a simple operating principle and good energy saving effect and is conveniently controlled.

Description

technical field [0001] The invention mainly relates to the field of maglev vehicles, in particular to a suspension traction comprehensive system for high-efficiency maglev trains. Background technique [0002] At present, the maglev train, as a future green transportation tool with broad application prospects, is being promoted and applied more and more. Classified by speed, maglev trains are divided into high-speed and medium-low speed maglev trains, of which medium-low speed maglev trains refer to speeds ≤150km / h, and are suitable for transportation in cities or suburbs. Traditionally, medium and low-speed maglev trains use U-shaped suspension electromagnets to suspend the car body, and linear induction motor traction. For example, the master's degree thesis of National University of Defense Technology: "Simulation of Linear Induction Motor Traction System and Calculation of Electromagnetic Force in Maglev Transportation" [2006 Year 09.14】Recorded in the technical solutio...

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Problems solved by technology

In this traditional structure, different independent systems are used for train suspension and traction. The disadvantages are: (1) there is resistance in the suspension electromagnet 10 coils, and there is loss after passing current. The ratio is about 0.8kw / ton; (2) The linear induction motor is only used for traction. When it is working, the normal electromagnetic force generated by it will interfere with the suspension of the train; in most cases, it increases the suspension burden; (3) The train When stationary and running, in order to ensure a suspension air gap of 8 mm, the propulsion linear induction motor has a relatively large air gap of 11 mm, and the motor has low working efficiency and low power factor; (4) When the train is running, it is necessary to ensure both suspension and traction. Such an air gap greatly improves the manufacturing requirements of vehicles and tracks, and increases the construction cost; (5) Suspension and traction adopt two independent systems, with complex structure, more equipment, and increased cost

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