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Urban rail maglev train traction converter output device

A traction converter and maglev train technology, applied in the traction field, can solve the problems of large volume and weight, insufficient utilization of the traction capacity of the converter, etc., and achieve the advantages of increasing the motor output, increasing the range of device selection, and reducing costs. Effect

Active Publication Date: 2011-07-27
TONGJI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The converter is usually designed according to the starting current and the voltage during high-speed operation. In this way, the traction capacity of the converter is not fully utilized, and at the same time it results in a large volume and weight

Method used

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  • Urban rail maglev train traction converter output device
  • Urban rail maglev train traction converter output device
  • Urban rail maglev train traction converter output device

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Embodiment Construction

[0033] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0034] Such as figure 2 As shown, the present invention describes a traction converter output device for an urban rail maglev train. Compared with the vehicle-mounted traction converter for an urban rail maglev train in the prior art, the converter output device of the present invention includes an inverter The inverter 1 includes two sets of inverter modules 11 . An output conversion device 2 is also circuit-connected between the output end of the inverter 1 and the motor 4, and the output conversion device 2 includes: an output transformer 21 connected to the output end circuit of the inverter 1, and an output transformer 21 connected with the output transformer. The output end circuit of 21 is connected to the output switch device 22 , and the output end circuit of the output switch device 22 is connected to the motor 4 . The output...

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Abstract

The invention discloses an urban rail maglev train traction converter output device. The device comprises an inverter, an input switch cabinet and an output converting device, wherein the input switch cabinet is in circuit connection with an input end of the inverter; the output converting device is in circuit connection with an output end of the inverter; the output end of the output converting device is in circuit connection with a plurality of external motors; the inverter comprises a plurality of inverter modules; and the output converting device comprises an output transformer which is in circuit connection with the output end of the inverter and an output switch device which is in circuit connection with the output end of the output transformer. The urban rail maglev train traction converter output device is provided with a plurality of same inverter modules and reduces the capacity demand of the traction inverter, thereby reducing the weight and the volume of the inverter and being beneficial to the arrangement of equipment; the voltage resistant grade and the output current demand of an inverter power device are reduced, and the cost of a traction system is reduced; the voltage formed by combining two inverters is high, and the speed-up capability of a train high-speed section can be improved; and the redundancy and the reliability of the system are improved.

Description

technical field [0001] The invention relates to a traction technology in the technical field of urban rail maglev transportation, in particular to an output device of a traction converter installed on an urban rail maglev vehicle. Background technique [0002] The urban rail maglev train is a type of conventional maglev train. The principle of its levitation is to use the electromagnet installed at the lower part of the vehicle to attract the F-shaped magnetically conductive steel rails installed on both sides of the track to make the train levitate. The vehicle-mounted converter is used to supply the variable-frequency voltage of the traction motor, and the short-primary linear asynchronous motor drives the maglev train to run. Urban rail maglev train has the advantages of strong climbing ability, small turning radius, low operating noise, low energy consumption, and reasonable cost. It is a new type of rail transit with great development potential. [0003] In the current...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/48H02M5/10
Inventor 史黎明王霄桦
Owner TONGJI UNIV
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