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An on-board 2G HTS magnets system with cooling-power-free and persistent-current operation for ultrahigh speed superconducting maglevs.
Sci Rep 2019; 9(1):11844SR

Abstract

Introduction of superconductor to magnetic levitation (maglev) trains greatly enhances the performances compared to those of normal conductor maglevs, e.g. from 430 km/h of the Transrapid (in Shanghai) to 603 km/h of the L0 Series in Japan. However, one of the important constraints on development of superconducting maglevs is limited wireless feeding power for on-board superconducting magnets and cryogenic cooling. In this paper, a persistent-current superconducting magnets system with solid nitrogen (SN2) cooling preservation is proposed for liberation of its demanding on-board power feeding requirement. The magnets are optimally designed with no-insulation technique guaranteeing a safe operation with magnetic field over 0.8 T. Lasting time of persistent current (at 96.5% magnetic field retained) and SN2 cooling preservation (up to 40 K) is all >9 h, covering a maglev traveling distance of >5400 km at average designed speed of >600 km/h. The magnets have anti-vibration ability of 15 g (147 m/s2) up to 350 Hz, which has covered the vibratory motion range in maglevs. This work is intended to provide a reference for superconducting maglev developments.

Authors+Show Affiliations

School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China. zhen.huang@sjtu.edu.cn.School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.CRRC Changchun Railway Vehicles Co., Ltd, Changchun, 130062, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31413343

Citation

Dong, Fangliang, et al. "An On-board 2G HTS Magnets System With Cooling-power-free and Persistent-current Operation for Ultrahigh Speed Superconducting Maglevs." Scientific Reports, vol. 9, no. 1, 2019, p. 11844.
Dong F, Huang Z, Hao L, et al. An on-board 2G HTS magnets system with cooling-power-free and persistent-current operation for ultrahigh speed superconducting maglevs. Sci Rep. 2019;9(1):11844.
Dong, F., Huang, Z., Hao, L., Xu, X., Jin, Z., & Shao, N. (2019). An on-board 2G HTS magnets system with cooling-power-free and persistent-current operation for ultrahigh speed superconducting maglevs. Scientific Reports, 9(1), p. 11844. doi:10.1038/s41598-019-48136-x.
Dong F, et al. An On-board 2G HTS Magnets System With Cooling-power-free and Persistent-current Operation for Ultrahigh Speed Superconducting Maglevs. Sci Rep. 2019 Aug 14;9(1):11844. PubMed PMID: 31413343.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - An on-board 2G HTS magnets system with cooling-power-free and persistent-current operation for ultrahigh speed superconducting maglevs. AU - Dong,Fangliang, AU - Huang,Zhen, AU - Hao,Luning, AU - Xu,Xiaoyong, AU - Jin,Zhijian, AU - Shao,Nan, Y1 - 2019/08/14/ PY - 2019/05/14/received PY - 2019/07/18/accepted PY - 2019/8/16/entrez PY - 2019/8/16/pubmed PY - 2019/8/16/medline SP - 11844 EP - 11844 JF - Scientific reports JO - Sci Rep VL - 9 IS - 1 N2 - Introduction of superconductor to magnetic levitation (maglev) trains greatly enhances the performances compared to those of normal conductor maglevs, e.g. from 430 km/h of the Transrapid (in Shanghai) to 603 km/h of the L0 Series in Japan. However, one of the important constraints on development of superconducting maglevs is limited wireless feeding power for on-board superconducting magnets and cryogenic cooling. In this paper, a persistent-current superconducting magnets system with solid nitrogen (SN2) cooling preservation is proposed for liberation of its demanding on-board power feeding requirement. The magnets are optimally designed with no-insulation technique guaranteeing a safe operation with magnetic field over 0.8 T. Lasting time of persistent current (at 96.5% magnetic field retained) and SN2 cooling preservation (up to 40 K) is all >9 h, covering a maglev traveling distance of >5400 km at average designed speed of >600 km/h. The magnets have anti-vibration ability of 15 g (147 m/s2) up to 350 Hz, which has covered the vibratory motion range in maglevs. This work is intended to provide a reference for superconducting maglev developments. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/31413343/An_on_board_2G_HTS_magnets_system_with_cooling_power_free_and_persistent_current_operation_for_ultrahigh_speed_superconducting_maglevs_ L2 - http://dx.doi.org/10.1038/s41598-019-48136-x DB - PRIME DP - Unbound Medicine ER -