TY - JOUR
T1 - Dynamic characteristics of a YBCO bulk above an electromagnet guideway
AU - Zhao, Chaoqun
AU - Ainslie, Mark D.
AU - Li, Jing
AU - Hong, Wei
AU - Xin, Ying
N1 - Funding Information:
Manuscript received November 27, 2020; accepted January 9, 2021. Date of publication January 14, 2021; date of current version February 12, 2021. This work was supported in part by the National Natural Science Foundation of China under Grant 51677131 and the Engineering and Physical Sciences Research Council under Grant EP/P020313/1. All data are provided in full in the results section of this article. (Corresponding authors: Ying Xin; Jing Li.) Chaoqun Zhao, Wei Hong, and Ying Xin are with the School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 2002-2011 IEEE.
PY - 2021/1/14
Y1 - 2021/1/14
N2 - For high-temperature superconducting (HTS) maglev, an electromagnet guideway unit (EMGU) that can form an electromagnet guideway (EMG) with a small gap, or even no gap, between EMGUs has been designed. The longitudinal magnetic fields along a single EMGU and two EMGUs arranged in a line were first investigated through measurement and simulation. The experimentally measured data validated the simulation results from a three-dimensional (3D) EMGU model implemented in COMSOL Multiphysics, indicating that the model is reliable and can be used for further studies. The dynamic responses of a high-temperature superconducting (HTS) bulk above a single EMGU and two EMGUs arranged in a line, including the dynamic levitation force (LF) and traveling directional force (TDF), under different operating conditions were investigated through experiment and simulation using a segregated H-formulation model. The magnetic field and current density distributions inside the superconductor are affected by the external magnetic field generated by the EMGU and are responsible for the dynamic characteristics. Finally, the segmented instant excitation (SIE) mode was investigated through simulation, which shows it is feasible by coordinating the currents of EMGUs.
AB - For high-temperature superconducting (HTS) maglev, an electromagnet guideway unit (EMGU) that can form an electromagnet guideway (EMG) with a small gap, or even no gap, between EMGUs has been designed. The longitudinal magnetic fields along a single EMGU and two EMGUs arranged in a line were first investigated through measurement and simulation. The experimentally measured data validated the simulation results from a three-dimensional (3D) EMGU model implemented in COMSOL Multiphysics, indicating that the model is reliable and can be used for further studies. The dynamic responses of a high-temperature superconducting (HTS) bulk above a single EMGU and two EMGUs arranged in a line, including the dynamic levitation force (LF) and traveling directional force (TDF), under different operating conditions were investigated through experiment and simulation using a segregated H-formulation model. The magnetic field and current density distributions inside the superconductor are affected by the external magnetic field generated by the EMGU and are responsible for the dynamic characteristics. Finally, the segmented instant excitation (SIE) mode was investigated through simulation, which shows it is feasible by coordinating the currents of EMGUs.
KW - bulk high-temperature superconductors
KW - dynamic levitation characteristics
KW - Electromagnet guideway
KW - HTS maglev
KW - HTS modeling
KW - numerical modeling
UR - http://www.scopus.com/inward/record.url?scp=85099731607&partnerID=8YFLogxK
U2 - 10.1109/TASC.2021.3051596
DO - 10.1109/TASC.2021.3051596
M3 - Article
AN - SCOPUS:85099731607
SN - 1051-8223
VL - 31
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 5
M1 - 3600407
ER -