Reactor for maglev train

Abstract

The invention discloses a reactor for a maglev train, comprising air core coils, wherein shielding assemblies are arranged above the air core coils, close to one side of the bottom plate of the maglev train; and the air core coils are connected with the shielding assemblies by supporting members. The reactor has the characteristics of simple structure, low manufacturing cost, light weight, capability of effectively shielding electromagnetic radiation, etc.

Description

technical field [0001] The invention mainly relates to the design field of maglev vehicles, in particular to a reactor mainly suitable for medium and low speed maglev trains. Background technique [0002] The maglev train is a new type of rail vehicle without supporting wheels, which relies entirely on electromagnetic force to realize the non-contact between the vehicle and the track. With the construction of the high-speed maglev demonstration line from Shanghai Longyang Station to the airport in China and the HSST medium and low-speed maglev operation line in Aichi County, Japan , its superiority is gradually recognized by people, and has attracted the attention of many scholars. According to speed, maglev trains are divided into high-speed and medium-low speed maglev trains. Among them, the medium and low speed maglev train refers to the speed 150km / h, especially suitable for urban or suburban transportation. The normal operating speeds of high-speed and medium-low sp...

AI Technical Summary

Problems solved by technology

[0004] When the traction system of medium and low-speed maglev trains is working, a certain current flows through its filter reactor. In addition to the main DC component, the current also has various high-order harmonic components. These DC and high-order harmonic component currents will be generated externally. DC and AC electromagnetic radiation, causing electromagnetic environmental pollution inside the car

Especially for passengers with cardiac pacemakers, large electromagnetic radiation may cause the pacemaker to stop abnormally, thus bringing life danger to passengers

However, the aluminum alloy carriage structure cannot effectively shield the electromagnetic radiation generated by the reactor suspended at the bottom of the carriage.

The actual engineering test shows that when the maglev train is working, for all the on-board electrical equipment, the high electromagnetic radiation in some places inside the car caused by the reactor is the main contradiction that needs to be solved

In order to solve this contradiction, a reactor with an iron core is often used, or a layer of magnetically conductive steel plate is placed on the floor of the carriage, or an integral iron box is used to weaken the electromagnetic radiation inside the carriage. The weight is greatly increased, which reduces the passenger capacity of the train, and at the same time brings unfavorable factors such as increased energy consumption of the suspended vehicle

[0005] Therefore, in the process of reactor design, production and installation, attention must be paid to the problem of electromagnetic radiation caused by it, so as to avoid the electromagnetic radiation generated by the reactor causing the electromagnetic radiation in the train compartment to exceed the standard, which will cause the train to fail to meet the technical requirements of operating vehicles. Require

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