Current Status of Superconducting Maglev System

Fujie, Junji

doi:10.1007/978-4-431-68141-0_286

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…Our basic method of modeling the problem is using a filament model ---Using this assumption, one can take advantage of the fact that the current in each coil is just a temporal and, thereby, spatial shift of each other. In other words, the current in the nth loop is the same as the one in the zeroth loop but displaced in time and equivalently in space Substituting (2) and (3) into (1) gives (4) n=--00…”

Section: Formulation Of the Problemmentioning

confidence: 99%

Optimization of guideway coil dimensions for a magnetic levitation system

Chen

Feng²

1997

IEEE Trans. Magn.

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Abstruct-A fast computer code that generates currents and forces for multiple magnetic levitation (MAGLEV) vehicle coils over a discrete guideway of arbitrary geometry has been developed, tested, and verified. A study of coil dimensions for overlapping loops, ladders, and discrete loops has been conducted to determine the optimal guideway design. A parameter known as "figure of merit" has been defined to assist in evaluating the level of "merit" for a particular track configuration. From this, it has been discovered that, for most cases, ladder trucks are a better configuration over both overlapping and discrete loops. On closer inspection, it was also discovered that an aspect ratio of unity for the dimensions of a ladder track yields the best overall results.

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Section: Formulation Of the Problemmentioning

confidence: 99%

Optimization of guideway coil dimensions for a magnetic levitation system

Chen

Feng²

1997

IEEE Trans. Magn.

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“…Superconducting magnetically levitated vehicle (Maglev) system has been developed [1,2]. Maglev system needs a large number of ground coils: propulsion coils and levitationguidance coils that are attached to both the sidewalls of the concrete guideway, which corresponds to the rails of a conventional railway [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Maglev system needs a large number of ground coils: propulsion coils and levitationguidance coils that are attached to both the sidewalls of the concrete guideway, which corresponds to the rails of a conventional railway [1,2]. For example, approximately forty thousand propulsion coils are arranged for a single track of 18.4km on Yamanashi test line [3].…”

Section: Introductionmentioning

confidence: 99%

Location of partial discharge occurring in ground coil of superconducting Maglev system under noise environment using radio interferometer system

Kawada

Suzuki

Ikeda

2013

2013 IEEE Electrical Insulation Conference (EIC)

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Superconducting magnetically levitated vehicle (Maglev) system needs a large number of ground coils installed on the guideway, which corresponds to the rails of a conventional railway. Main insulating material of ground coil is epoxy resin; it is required to develop the insulation diagnostic technique for the ground coils installed along the entire length of the guideway in order to increase the reliability of the Maglev system. We apply the radio interferometer system, which has been originally designed, to the location of a partial discharge (PD) occurring in the ground coil attached to the sidewall of a mock-up of concrete guideway constructed outside. In consideration of radio noise, a finite-duration impulse response (FIR) filter and the short-termaverage to long-term average (STA/LTA) ratio method are installed in the radio interferometer system. The FIR filter removes radio noise from received signals, and the STA/LTA ratio method determines arrival time of electromagnetic (EM) waves emitted from PD.

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Current Status of Superconducting Magnet for a Maglev System

Nakashima

1993

Advances in Superconductivity V

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Current Status of Superconducting Maglev System

Cited by 6 publications

References 1 publication

Optimization of guideway coil dimensions for a magnetic levitation system

Optimization of guideway coil dimensions for a magnetic levitation system

Location of partial discharge occurring in ground coil of superconducting Maglev system under noise environment using radio interferometer system

Current Status of Superconducting Magnet for a Maglev System

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