Magnetic Field Test on an Electromagnetic Turnout Prototype System for High-<i>T</i>
                  <sub>c</sub> Superconducting Maglev

Liu, Xiaoning; Deng, Bin; Bao, Shijie; Liang, Chao; Wan, Yupei; Liu, Bangsong; Wen, Tianqi; Xie, Jun; Deng, Zigang

doi:10.1109/tasc.2019.2930943

Cited by 8 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The magnetic field and levitation performance of these two PMGs were experimentally compared. The measurement of the magnetic field was completed with a threedimensional magnetic field scanner [21]. As with the simulation, the vertical and horizontal magnetic field at a height of 20 mm above the optimized PMG and original PMG were measured.…”

Section: Experimental Verificationmentioning

confidence: 99%

Optimization study of the Halbach permanent magnetic guideway for high temperature superconducting magnetic levitation

Deng

Zhang

Cui

et al. 2020

Supercond. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Due to the combined advantages of no-contact friction and self-stable levitation, high temperature superconducting magnetic levitation (HTS Maglev) has significant potential for rail transit applications. In order to further improve the carrying capacity of the HTS maglev system, it is necessary to optimize the permanent magnet guideway (PMG). In this paper, the original Halbach PMG was optimized and a new PMG with better performance was designed and manufactured. The magnetic field and magnetic forces were calculated by the finite element method, and the size and magnetization direction of each PM in the PMG were optimized. Then, the magnetic field above the optimized PMG were measured and compared with the original Halbach PMG as well as the levitation and guidance force of the bulk high temperature superconductors. Experimental data show that the magnetic field above the optimized PMG is effectively enhanced and the levitation and guidance force of the superconductors increase by 12.2% and 11.3%, respectively. This study can provide the foundation for the further optimization of PMGs and the research of large load HTS Maglev technology.

show abstract

Section: Experimental Verificationmentioning

confidence: 99%

Optimization study of the Halbach permanent magnetic guideway for high temperature superconducting magnetic levitation

Deng

Zhang

Cui

et al. 2020

Supercond. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the model, the nonlinearity of vehicle suspension is also taken into consideration to investigate the effects of suspension nonlinearity on the stability of vehicle/switch system. The suspension controller model, including the electro-magnetic suspension model and the suspension strategy, is developed on the basis of PID control theory, which can be described through the equations ( 5)- (8). Considering the large interaction forces between the vehicle and the switch could excite some vibration modes of the switch system, the flexibility of switch beam is modeled [24][25][26] via the modal superposition method.…”

Section: The Coupled Model For the Vehicle-switch Systemmentioning

confidence: 99%

“…They used the control of the direction of electromagnetic iron current to guide the direction of maglev train operation, and through simulation to optimize the material and structural parameters of the electromagnet, designed the switch provides a reference direction. Liu et al 8 analyzed the characteristics of electromagnetic and mechanical switch, introduced a complete electromagnetic switch prototype system in detail and then found the magnetic field generated by the electromagnetic iron instead of permanent magnets on the rail. The applicability of the switch was confirmed, which is of great significance for the future development of high temperature magnetic levitation transportation.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear vibration and control of maglev vehicle-switch beam coupling system

Dong

Chen

et al. 2021

Advances in Mechanical Engineering

View full text Add to dashboard Cite

The electro-magnetic suspension (EMS)-based Maglev train, referred as one of the new transport mode, the two important issues are the loss of stability and the nonlinear coupled vibration because of it including suspension controller and control command. In this study, a Maglev train-controller coupled dynamic model is developed to investigate the stability of suspension controller and the coupling vibration, wherein, the tuned mass damper (TMD) control method is applied to avoid Hopf bifurcation phenomenon of the train-switch vibration. The eigenvalue and time integration methods are used to analysis the instability domain. The results demonstrate the proposed dynamic model is able to represent the loss of stability of the coupled vibration, which is comparable to those obtained via the experiments. Using this dynamic model, the dynamic performance and characteristic of the vehicle/switch coupled vibration is investigated, which further contributes to the TMD-based vibration control method for the vibration of the switch beam and the stability of the coupling system.

show abstract

“…The most important is the development of fast static switch points at the scale of real vehicles and guideways that are 100% reliable. First results in this field have been published [18,25]. Other obstacles to the development of the technology are the costs of both the magnets and the superconducting bulks.…”

Section: Conclusion and Perspectives Regarding Sml Systemsmentioning

confidence: 99%

“…In comparison, if magnetic levitation is achieved with a type I superconductor, the superconductor has a single defined equilibrium position about which it can only orbit or oscillate [9]. As a result, auto-stabilized rotating bearings have been demonstrated with HTS and NdFeB magnets [10][11][12][13] and investigations into levitating trains have been carried out [14][15][16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Superconducting magnetic levitation: principle, materials, physics and models

Bernstein

Noudem

2020

Supercond. Sci. Technol.

View full text Add to dashboard Cite

In contrast to the interaction between two magnets with opposite magnetization directions, the interaction between a permanent magnet and a superconductor can be stable and result in magnetic levitation. This property can be exploited for the development of high velocity rotating bearings with no mechanical contacts and for the development of levitated trains. In this review, we focus on this latter application. After a brief description of the other techniques developed for levitating trains and the resulting achievements, we describe the magnet-superconductor interaction and recall the achievements in this field. We then give insights into the properties of the employed magnets and arrangement of magnets and we detail the characteristics and the fabrication processes of the most frequently used superconductors. Focusing on physics, we detail the procedures generally used for measuring the vertical (levitation) and the lateral (guidance) forces in magnetic levitation and the results obtained from experiments. We detail and give a critical review of the various models proposed for reproducing the force measurements. In the conclusion we discuss the possible future developments of the technology.

show abstract

Magnetic Field Test on an Electromagnetic Turnout Prototype System for High-T _c Superconducting Maglev

Cited by 8 publications

References 20 publications

Optimization study of the Halbach permanent magnetic guideway for high temperature superconducting magnetic levitation

Optimization study of the Halbach permanent magnetic guideway for high temperature superconducting magnetic levitation

Nonlinear vibration and control of maglev vehicle-switch beam coupling system

Superconducting magnetic levitation: principle, materials, physics and models

Contact Info

Product

Resources

About

Magnetic Field Test on an Electromagnetic Turnout Prototype System for High-T c Superconducting Maglev

Cited by 8 publications

References 20 publications

Optimization study of the Halbach permanent magnetic guideway for high temperature superconducting magnetic levitation

Optimization study of the Halbach permanent magnetic guideway for high temperature superconducting magnetic levitation

Nonlinear vibration and control of maglev vehicle-switch beam coupling system

Superconducting magnetic levitation: principle, materials, physics and models

Contact Info

Product

Resources

About

Magnetic Field Test on an Electromagnetic Turnout Prototype System for High-T _c Superconducting Maglev