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Super high-speed magnetically levitated system approaches practical use

Journal Article:

Abstract

The JR-MAGLEV, a super high-speed magnetically levitated system, has been under development since the inauguration with the manufacturing of a succession of trial vehicles. In 1987, the trial vehicle recorded a speed of 400 km/hr as a 2-car formation with passengers. As a participant in the Maglev project, Toshiba has been contributing to the development of superconducting magnets, the main element of the system, as well as auxiliary power sources and the cycloconverter to be used in the substations. A prototype vehicle for commercial service, MLU 002, was manufactured in March 1988 and is now under testing with the aim of achieving a target speed of 420km/hr. The main parameters of superconducting magnet are as follows; magnetomotive force of 700 kA and number of coils of 3 poles/2 trains/ 2 cars, and the magnets are light weight which is almost the limits with the weight ratio to rolling stock of 0.25. As measures to protect vaporization loss of helium for coil-cooling, a relicfaction process of the helium vapor by use of Claude cycle refrigerator was adopted. A circulating current cycloconverter with 16 MVA was developed for the travel motion. The cycloconverter enabled to receive power directly from an electric power  More>>
Publication Date:
Oct 01, 1988
Product Type:
Journal Article
Reference Number:
NEDO-88-920442; EDB-89-108983
Resource Relation:
Journal Name: Toshiba Rebyu; (Japan); Journal Volume: 43:10
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; JAPAN; RAILWAYS; LEVITATED TRAINS; PERFORMANCE TESTING; VELOCITY; COMMERCIALIZATION; MAGNET COILS; REFRIGERATORS; SUPERCONDUCTING MAGNETS; TRANSFORMERS; ASIA; ELECTRIC COILS; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; EQUIPMENT; MAGNETS; SUPERCONDUCTING DEVICES; TESTING; TRAINS; VEHICLES; 320202* - Energy Conservation, Consumption, & Utilization- Transportation- Railway; 420201 - Engineering- Cryogenic Equipment & Devices
OSTI ID:
6017733
Research Organizations:
Toshiba Corp., Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: TORBA
Submitting Site:
NEDO
Size:
Pages: 798-800
Announcement Date:

Journal Article:

Citation Formats

Matsuda, Shoji, Nakao, Hiroyuki, and Takemasa, Hisashi. Super high-speed magnetically levitated system approaches practical use. Japan: N. p., 1988. Web.
Matsuda, Shoji, Nakao, Hiroyuki, & Takemasa, Hisashi. Super high-speed magnetically levitated system approaches practical use. Japan.
Matsuda, Shoji, Nakao, Hiroyuki, and Takemasa, Hisashi. 1988. "Super high-speed magnetically levitated system approaches practical use." Japan.
@misc{etde_6017733,
title = {Super high-speed magnetically levitated system approaches practical use}
author = {Matsuda, Shoji, Nakao, Hiroyuki, and Takemasa, Hisashi}
abstractNote = {The JR-MAGLEV, a super high-speed magnetically levitated system, has been under development since the inauguration with the manufacturing of a succession of trial vehicles. In 1987, the trial vehicle recorded a speed of 400 km/hr as a 2-car formation with passengers. As a participant in the Maglev project, Toshiba has been contributing to the development of superconducting magnets, the main element of the system, as well as auxiliary power sources and the cycloconverter to be used in the substations. A prototype vehicle for commercial service, MLU 002, was manufactured in March 1988 and is now under testing with the aim of achieving a target speed of 420km/hr. The main parameters of superconducting magnet are as follows; magnetomotive force of 700 kA and number of coils of 3 poles/2 trains/ 2 cars, and the magnets are light weight which is almost the limits with the weight ratio to rolling stock of 0.25. As measures to protect vaporization loss of helium for coil-cooling, a relicfaction process of the helium vapor by use of Claude cycle refrigerator was adopted. A circulating current cycloconverter with 16 MVA was developed for the travel motion. The cycloconverter enabled to receive power directly from an electric power company, the output current becomes complete sine wave, and the problems on traveling control were solved. 6 references, 8 figures, 3 tables.}
journal = {Toshiba Rebyu; (Japan)}
volume = {43:10}
journal type = {AC}
place = {Japan}
year = {1988}
month = {Oct}
}