A Review of Integrated Propulsion, Suspension and Guidance Passive Guideway Maglev Technologies

Bird, Jonathan Z.

doi:10.1109/ldia.2019.8770983

Cited by 13 publications

(5 citation statements)

References 64 publications

(86 reference statements)

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“…Both the US and West-German governments also heavily supported double-sided LIM-based maglev test vehicles [31]. Also, the Transrapid 04 used a double-sided LIM [32].…”

Section: Functionalities Of An Ideal Hyperloop Systemmentioning

confidence: 99%

“…These myriad mechanical and electrical issues were not solved in the 1970s and 1980s at speeds of 400 km/h to 500 km/h, and it will not get easier for higher velocities with even longer double-sided LIMs. Hyperloop developers today need to become familiar with the unresolved issues at lower speeds before pursuing subsonic speeds [31], [32].…”

Section: Functionalities Of An Ideal Hyperloop Systemmentioning

confidence: 99%

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A Reality Check on Maglev Technology for the Hyperloop Transportation System: Status Update After a Decade of Development

Nøland,

Bird

2024

Preprint

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Ten years ago, the concept of the hyperloop vacuum train promised to revolutionize transportation by offering a fast, inexpensive, and eco-friendly alternative to traditional modes of travel. The key components of the hyperloop are a vacuum tube, magnetic levitation, and linear electric propulsion technology, which is envisaged to achieve surface velocities approaching the speed of sound. This paper presents the functionalities of an ideal hyperloop transportation system (HTS) with a low-cost track and a lightweight hyperloop capsule. We show how this ideal system is indeed difficult to achieve in reality. Despite the potential benefits, hyperloop technology still lacks experimental evidence at subsonic speeds to reach a higher level of technological readiness. Taking one step back, hyperloop has lessons to learn from the maglev research and experiments in the 1970s. In fact, there are many unresolved challenges associated with maglev technologies, even at moderate speeds, which need to be recognized before reaching the whole way into the subsonic speed domain. This paper will provide a status update after ten years of hyperloop research and development.

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“…Both the US and West-German governments also heavily supported double-sided LIM-based maglev test vehicles [31]. Also, the Transrapid 04 used a double-sided LIM [32].…”

Section: Functionalities Of An Ideal Hyperloop Systemmentioning

confidence: 99%

Section: Functionalities Of An Ideal Hyperloop Systemmentioning

confidence: 99%

A Reality Check on Maglev Technology for the Hyperloop Transportation System: Status Update After a Decade of Development

Nøland,

Bird

2024

Preprint

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“…Maglev vehicles are competitive with aircraft in terms of travel time and can be powered by electricity, in line with sustainable development. Given reducing the consumption of maglev transportation, the maglev track should be passive [4]. Achieving this requires that the maglev vehicle be the initial field source, rather than the track.…”

Section: Introductionmentioning

confidence: 99%

“…Induced current inside the passive conductive track guide by rotating magnets rather than simply translating magnets can generate levitation and thrust force [4]. Magnet rotation can produce a relatively high lift‐to‐weight ratio [4] and converts magnetic resistance into driving force.…”

Section: Introductionmentioning

confidence: 99%

Yawing stability and manipulative approach design for maglev car based on active disturbance rejection control

Zhang,

Ke,

et al. 2023

Asian Journal of Control

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In the present work, to realize the stable static suspension of a new type of electrodynamic wheel (EDW) magnetic levitation (maglev) car without track constraints on the conductor plate. Design and analysis of the active disturbance rejection control and explicit complementary filter (ADRC‐ECF) have been presented to solve the maglev car's yaw angle disturbance rejection under low lateral damping characteristics. Simple and efficient ECF helps to filter the high and low frequency noise generated by EDWs when rotating at high speed, to obtain accurate data in real‐time. Design and build the hardware control system for maglev car, and conduct experimental comparisons with PID controller to verify the effectiveness of suppressing yaw angle disturbances. Based on simulation and experimental results, it is shown that both PID and ADRC‐ECF can improve the stable yaw angle convergence of maglev car under external disturbances. However, ADRC performs better in resisting disturbances than PID and can achieve more accurate fixed angle steering. This paper is the first attempt to control maglev car on a trackless conductor plate for precise steering and anti‐disturbance, which is anticipated to have some reference significance in this field.

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“…According to the difference of the main magnetic flux, it can be divided into two types , i.e.radial and axial EDW. The electromagnetic characteristics of radial EDW are studied by Lipo and Bird [2], [8], [10]- [13]. The radial EDW has some advantage in which the traveling magnetic field follows the direction of the translation motion.…”

mentioning

confidence: 99%

Three-dimensional Analytical Modeling of Axial Flux Permanent Magnets Maglev Motor

Qin

Yuhua

2022

Trans. Electr. Mach. Syst.

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The three-dimensional(3D) analytical model of the magnetic field in an Axial Flux Permanent Magnets Maglev Motor(AFPMMM) is proposed and investigated the influence of the structural parameters on electromagnetic characteristics. Firstly, the topology and working principle of the AFPMMM is introduced, and the model is transferred into a mathematical model in 3D cartesian coordinate. Then, the volume integral method and equivalent current sheets model is applied to find the 3D magnetic field distribution function of Halbach rotor. A unified form expression can be obtained by two dimensional discrete fourier transform (2-D DFT) is applied on the 3D magnetic field distribution function. Thirdly, the conductive and nonconductive regions of AFPMMM will be formulated by the second order vector potential (SOVP) to built the 3D analytic model. The expression of the lift force, torque and power losses was derived. Besides, the relationship between electromagnetic characteristics and structural parameters of the AFPMMM were analyzed based on 3D analytic model and validated using the 3D finite element analysis(FEA). Finally, the experiments based on a small scale prototype are carried out to verify the analytical results.

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A Review of Integrated Propulsion, Suspension and Guidance Passive Guideway Maglev Technologies

Abstract: This paper provides a review of integrated propulsion, suspension and guidance maglev technology that use fully passive guideway structures.

Cited by 13 publications

References 64 publications

A Reality Check on Maglev Technology for the Hyperloop Transportation System: Status Update After a Decade of Development

A Reality Check on Maglev Technology for the Hyperloop Transportation System: Status Update After a Decade of Development

Yawing stability and manipulative approach design for maglev car based on active disturbance rejection control

Three-dimensional Analytical Modeling of Axial Flux Permanent Magnets Maglev Motor

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