Electromagnetic power device of fluid film suspension vehicle system

Abstract

The invention relates to an electromagnetic power device of a fluid film suspension vehicle system. A primary side and a secondary side of the electromagnetic power device are installed on a wide fluid film suspension vehicle bottom disc face and a rail face so as to increase the electromagnetic coupling area. A thin pressure fluid film of the fluid film suspension vehicle is used as an electromagnetic coupling gap to reduce the size of the electromagnetic coupling gap. The electromagnetic power device of the fluid film suspension vehicle has the advantages of being large in electromagnetic coupling area, small in electromagnetic coupling gap and self-stable, the electromagnetic power, the electromagnetic conversion efficiency and the power factor of the fluid film suspension vehicle can be remarkably improved, and two-dimensional plane electromagnetic driving force is generated; the air resistance of the fluid film suspension vehicle during high-speed running can be effectively overcome, and high-speed, efficient and flexible running of the fluid film suspension vehicle is guaranteed.

Description

technical field [0001] The invention relates to an electromagnetic power device of a fluid film suspension vehicle system. The electromagnetic power device can significantly increase the electromagnetic coupling area between the primary and the secondary to increase the electromagnetic power, and significantly reduce the electromagnetic coupling gap between the primary and the secondary The electromagnetic conversion efficiency is improved to ensure the high-speed and efficient driving of the fluid film suspension vehicle. Background technique [0002] It has always been the dream of human beings to stably suspend the vehicle on the track and realize high-speed and high-efficiency driving. Improving the driving force of the train power unit and improving the operating efficiency are the key technical issues that must be solved to realize this dream. [0003] At present, train traction power devices are mainly divided into two types: adhesive traction and non-adhesive tracti...

AI Technical Summary

Problems solved by technology

However, there are still three key technical problems that are difficult to overcome in the linear motor wheel-rail traffic train system: first, since the linear motor primary is installed on the bogie, and the secondary is installed between two rails on the track, the primary and secondary The structure and size are limited by the distance between the bogie and the rail, which limits the electromagnetic coupling area between the primary and secondary, and because the electromagnetic driving force is proportional to the electromagnetic coupling area, the electromagnetic driving force of the train is limited. It is difficult to overcome the air resistance at high speed, and it is difficult to achieve a higher driving speed; second, in order to prevent the mechanical friction caused by the collision between the primary and secondary during operation, the design between the primary and secondary of the linear motor wheel-rail train There is a large electromagnetic coupling gap (about 8-12 mm, about 10 times larger than the gap of the rotating motor), and the large electromagnetic coupling gap results in lower electromagnetic conversion efficiency, lower power factor and more serious edge effects ( The efficiency and power factor of the linear induction motor of Japanese HSST trains are only 64%), reducing the electromagnetic coupling gap and improving the efficiency of the power system have always been the research focus and technical difficulties in this field; third, the bogie of the linear motor wheel-rail traffic train And the wheel set does not have a streamlined structure, and the complex bogie and wheel set structure produce large air interference resistance when driving at high speed, which further limits the running speed and efficiency of the linear motor wheel-rail traffic train

[0005] The fluid film suspension vehicle system includes a fluid film suspension vehicle, a track surface, a fluid film, and a power device installed on a train or track, etc. The fluid film suspension vehicle is a vehicle that relies on fluid viscosity. The principle of fluid dynamic pressure lubrication directly forms a fluid film to suspend high-speed trains, but the air resistance increases significantly when traveling at high speeds. Designing a power device with large driving force and high operating efficiency to achieve high-speed and efficient suspension travel is still a problem. key technical issues

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