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Mutual feedback device for performance testing of roller-shaped linear induction traction motors for rail transit

A linear induction motor and linear induction technology, applied in the field of electric traction transmission, can solve the problems that cannot meet the requirements and testing of linear induction traction motors, and achieve the effect of energy saving and high efficiency

Active Publication Date: 2016-01-13
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the manufacture of high-power linear induction traction motors is completed, the torque test method and device of ordinary rotating motors are followed, which obviously cannot meet the requirements of linear induction traction motors. How to test the performance indicators of motor force characteristics has become a major problem

Method used

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  • Mutual feedback device for performance testing of roller-shaped linear induction traction motors for rail transit
  • Mutual feedback device for performance testing of roller-shaped linear induction traction motors for rail transit
  • Mutual feedback device for performance testing of roller-shaped linear induction traction motors for rail transit

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Embodiment Construction

[0028] The content of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] figure 1 It is a schematic diagram of the structure of the mutual-feedback device for the performance test of the drum-shaped linear induction traction motor. The device consists of a primary base 1, an arc-shaped linear induction motor primary 2, a rotary encoder 3, a drum-shaped secondary 4, a flywheel coupling 5, a torque meter 6, a rotary induction motor 7, the first # converter 8, the second 2# Converter 9 is composed. The arc-shaped linear induction motor primary 2 is fixed on the primary base 1, and the arc of the arc-shaped linear induction motor primary 2 matches the drum-shaped secondary 4, that is, the center of the circle coincides; the arc-shaped linear induction motor primary 2 and the drum-shaped secondary 4 There is an air gap between them, and the width of the air gap is set to the rated working value of the line...

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Abstract

The invention belongs to the technical field of electric dragging transmission and particularly relates to a roller-shaped straight lien sensing dragging motor performance testing mutual feedback device for track traffic. The device comprises a roller-shaped secondary part, an arc straight line sensing motor primary part, a rotating sensing motor, a number one current transformer, a number two current transformer, a flywheel coupler, a primary base, a rotating coder and a torquemeter. The arc straight line sensing motor primary part is fixed on the primary base, the rotating coder is arranged on one side of the roller-shaped secondary part, the rotating coder, the roller-shaped secondary part, the flywheel coupler, the torquemeter and the rotating sensing motor are connected together in series through coupling joints, an alternating current end of the number two current transformer is connected with the rotating sensing motor, and an alternating current end of the number one current transformer is connected with the arc straight line sensing motor primary part. The device has the advantages of being high in efficiency, energy is saved, working condition measuring is complete, high-speeding working condition measuring and electromagnetic force measuring are complete, conversion after measuring is of no need, size is small, occupied space is small, and the device is suitable for being used indoors.

Description

technical field [0001] The invention belongs to the technical field of electric traction transmission, and in particular relates to a performance testing mutual feedback device of a roller-shaped linear induction traction motor for rail transit. Background technique [0002] At present, linear motor urban rail trains, medium and low-speed maglev trains, etc. all use high-power linear induction traction motors. Compared with ordinary rotating motors, this motor has a different topology, so the electromagnetic force of this motor in three-dimensional space is different from that of ordinary rotating motors, and this motor has three-dimensional electromagnetic forces: horizontal thrust, normal force and lateral force. When testing the characteristics of ordinary rotating motors, it is only necessary to test the torque, but when testing the characteristics of linear induction traction motors, people put forward higher technical requirements, and it is necessary to test horizonta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
Inventor 吕刚周杰
Owner BEIJING JIAOTONG UNIV
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