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High-temperature super conductive linear motor driving device for railway traffic

A technology of high-temperature superconducting and linear motors, applied in the direction of electromechanical devices, electric components, winding conductive materials, etc., can solve the problems of large leakage magnetic field, low efficiency and power factor, achieve low power loss, improve driving force, and reliability and the effect of life improvement

Inactive Publication Date: 2009-01-07
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coupled with the end effect of the linear induction motor, the leakage magnetic field is large, and the efficiency and power factor are low, which has become the biggest problem of the linear motor system

Method used

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  • High-temperature super conductive linear motor driving device for railway traffic
  • High-temperature super conductive linear motor driving device for railway traffic
  • High-temperature super conductive linear motor driving device for railway traffic

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Embodiment Construction

[0021] The present invention will be described in detail below with reference to the accompanying drawings in conjunction with the embodiments.

[0022] refer to Figure 7 , a high-temperature superconducting linear motor drive device for rail transit, including a controllable variable frequency power supply 13 and a high-temperature superconducting linear motor, the high-temperature superconducting linear motor consists of a primary assembly, a secondary conductor plate 2 and a secondary magnetically conductive steel plate 7 and The superconducting cooling system (cooling liquid inlet pipe 8, cryogenic container 9, cooling equipment 12 and cooling liquid outlet pipe 14) is composed.

[0023] refer to Figure 1-5 , the high-temperature superconducting winding 3 adopts a cake-type structure and a racetrack-shaped cross-section, and the windings are arranged in layers in the slots of the primary iron core 4. An insulating layer 11 is added between each primary winding, and a fi...

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Abstract

The invention discloses a driving device of a high temperature super-conducting linear motor for rail transit, comprising a controllable variable-frequency power supply and a high temperature super-conducting linear motor; a primary iron core (4) of the high temperature super-conducting linear motor is composed of amorphous alloy slices or of non-magnetic materials directly; a high temperature super-conducting winding is connected with a controllable variable-frequency power supply (13); an air gap (6) is arranged between the bottom plane of the primary iron core and the upper surface of a secondary conductor plate (2); the high temperature super-conducting winding (3) adopts cake structure and a runway section; the winding is arranged in layers and is fixed in the groove of the primary iron core; a primary component is composed of the high temperature super-conducting winding (3) and the primary iron core (4), and is arranged in a cryogenic vessel (9) and fixed on a bogie (5); the secondary conductor plate and a secondary magnetic conductive steel plate (7) are fixed on the sleeper between the two rails. The driving device has the advantages of small volume, light weight, little energy loss and greatly increased reliability and prolonged service life; the driving device can be widely applied to trains, subways, urban metros, etc.

Description

technical field [0001] The invention relates to a linear motor driving device, in particular to a high temperature superconducting linear motor driving device for rail transit. Background technique [0002] Traditional urban rail transit vehicles rely on wheel-rails for traction and braking. Due to the existence of physical adhesion, the improvement of acceleration / deceleration performance and climbing ability is limited; in addition, it also has poor all-weather operation characteristics, and relatively high mechanical vibration and noise. Large, relatively difficult vehicle lightweight and miniaturization. The linear induction motor carrying system is a new type of urban rail transit mode driven by linear induction motors. The system uses wheel rails to complete its support and guidance, and relies on the electromagnetic force generated by linear induction motors to propel it. Therefore, this system is no longer restricted by the wheel-rail adhesion factor, and the tracti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/02H02K55/00H02K3/02H02K1/02
Inventor 方进
Owner BEIJING JIAOTONG UNIV
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