High temperature superconducting magnetic suspension vehicle driven by permanent magnet linear synchronous motor without gear grooves

A permanent magnet synchronous linear, high-temperature superconducting technology, applied in the field of vehicles, can solve problems affecting the operating comfort of maglev vehicles, motor normal force and thrust fluctuations, suspension system stability disturbances, etc., to improve the overall suspension capacity, The effect of small disturbance and large vehicle payload

Pending Publication Date: 2017-06-13
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used permanent magnet synchronous linear motor has a large normal magnetic attraction force, and the normal force is about 10 times the thrust force, and there are large fluctuations in the normal force and thrust of the motor during the movement, and the normal force fluctuation will affect the suspension. The stability of the system causes disturbance, and the thrust fluctuation will affect the operating comfort of the magnetic levitation vehicle, so the cogged iron core permanent magnet synchronous linear motor is not suitable for the high temperature superconducting magnetic levitation drive system

Method used

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  • High temperature superconducting magnetic suspension vehicle driven by permanent magnet linear synchronous motor without gear grooves
  • High temperature superconducting magnetic suspension vehicle driven by permanent magnet linear synchronous motor without gear grooves
  • High temperature superconducting magnetic suspension vehicle driven by permanent magnet linear synchronous motor without gear grooves

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Embodiment 1

[0039] This embodiment provides a high-temperature superconducting magnetic levitation vehicle driven by a unilateral non-cogged permanent magnet synchronous linear motor, such as figure 2 As shown, it includes a car body, a high-temperature superconducting suspension system that suspends and guides the car body, and is connected with a track beam 1 for driving the car body, and is used to drive the car body along the The linear motor propulsion system for the movement of the track beam 1; the car body includes: a main body 2 with a vertical central axis Y; The first extension part 3 and the second extension part 4 are symmetrically arranged, and the bottom end of the first extension part 3 is formed with a first bending part 5; the bottom end of the second extension part 4 is formed with a second bend Bending portion 6; the free end 7 of the first bending portion 5 is opposite to the free end 8 of the second bending portion 6, and the two free ends 7 and 8 are arranged symme...

Embodiment 2

[0049] This embodiment provides a high-temperature superconducting magnetic levitation vehicle driven by a double-sided non-cogging permanent magnet synchronous linear motor, such as image 3 As shown, the high-temperature superconducting maglev vehicle driven by the double-sided non-cogged permanent magnet synchronous linear motor includes a vehicle body 2' having a vertical central axis Y', making the vehicle body 2' suspend and supporting the vehicle body 2 A high-temperature superconducting suspension system for guiding and a linear motor propulsion system connected to the track beam 1' for the vehicle body 2' to drive the vehicle body 2' to move along the track beam 1', Wherein, the linear motor propulsion system is arranged in the upper middle of the track beam 1'.

[0050] Specifically, the high-temperature superconducting suspension system includes permanent magnet tracks 14 and 14 that are symmetrically arranged on both sides above the track beam 1' along the vertical...

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Abstract

The invention relates to a high temperature superconducting magnetic suspension vehicle driven by a permanent magnet linear synchronous motor without gear grooves. The high temperature superconducting magnetic suspension vehicle comprises a vehicle body, a high temperature superconducting suspension system and a linear motor propulsion system. The linear motor propulsion system is arranged at the two sides at the lower portion of guiding rail beam or the middle upper portion of the guiding rail beam. A winding of the permanent magnet synchronous motor is fixed by non-ferromagnetic materials and the like, which has the advantages of good heat conduction performance, convenient installation and the like; a vehicle permanent magnet secondary does not need vehicle power supply, the secondary is light in weight and the vehicle effective loading is large; when a single-side permanent magnet linear synchronous motor without the gear grooves is used, the magnetic attraction between the permanent magnet and a back iron of a long stator can be used as suspension force for the magnetic suspension vehicle system, and the overall suspension capacity of the magnetic suspension vehicle is improved; when a double-side permanent magnet linear synchronous motor without the gear grooves is used, the vehicle permanent magnet is subjected to small lateral force and no vertical force; the linear motor propulsion system has little disturbance to the vehicle suspension system, and the system runs dynamically and has good stability.

Description

technical field [0001] The invention relates to the field of vehicles, in particular to a high-temperature superconducting magnetic levitation vehicle driven by a permanent magnet synchronous linear motor without cogging. Background technique [0002] Maglev train is a land non-contact rail vehicle without wheels, which uses electromagnetic levitation and electric traction. According to the principle of electromagnetic levitation, this kind of train can be divided into two categories: constant conduction suction levitation and superconducting repulsion levitation. [0003] The existing high-temperature superconducting maglev vehicle systems all adopt linear induction motor drive schemes. Linear induction motor has the advantages of simple structure, low cost, simple and reliable control system, etc., but it also has disadvantages such as small thrust, low efficiency, low power factor, and poor high-speed performance, so it is more suitable for medium and low-speed magnetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L13/03B60L13/10
CPCB60L13/03B60L13/10B60L2200/26B60L2220/14
Inventor 邓自刚张江华张卫华郑珺
Owner SOUTHWEST JIAOTONG UNIV
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