TY - JOUR
T1 - Effect of Arc Chute on DC Current Interruption by Liquid Nitrogen in HTS Electrical System of Distributed Propulsion Aircraft
AU - Li, Hongxu
AU - Xiang, Bin
AU - Song, Wenjuan
AU - Geng, Yingsan
AU - Liu, Zhiyuan
AU - Wang, Jianhua
AU - Pei, Xiaoze
AU - Tu, Youping
N1 - Funding Information:
Manuscript received November 27, 2020; revised January 30, 2021 and February 25, 2021; accepted March 1, 2021. Date of publication March 8, 2021; date of current version April 16, 2021. This work was supported in part by the National Natural Science Foundation of China under Grants 51877166, 51907153, and 51911530195, in part by the China Postdoctoral Science Foundation Funded Project 2019M653632, and in part by the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources under Grant LAPS20008. (Corresponding author: Bin Xiang.) Hongxu Li, Bin Xiang, Yingsan Geng, Zhiyuan Liu, and Jianhua Wang are with the State Key Laboratory of Electrical Insulation and Power Equipment, Department of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China (e-mail: lihongxu@stu.xjtu.edu.cn; xiangbin0319@163.com; liuzy@mail.xjtu.edu.cn; ysgeng@xjtu.edu.cn; jhwang@mail.xjtu.edu.cn).
Publisher Copyright:
© 2002-2011 IEEE.
PY - 2021/3/8
Y1 - 2021/3/8
N2 - The distributed propulsion aircraft with HTS electrical system is a novel concept for future airliners, which can reduce by more than 70% fuel burn and NOx emissions. The circuit breakers ensure the security of this novel aircraft by isolating electrical faults timely. Solid-state circuit breakers (SSCBs) are preferred due to their fast response and high performance in the cryogenic circumstance. However, the high conduction loss of SSCBs impedes their further application. A mechanical switch using liquid nitrogen (LN2) as an arc extinguishing medium shows excellent DC current interruption performance. The LN2 switch is characterized with extremely low contact resistance, and the proper use may reduce the conduction loss of power switches significantly. Nevertheless, the effect of metal type arc chutes on the arcing process in the LN2 is still not clear. Thus the objective of this paper is to understand the effect of metal type arc chutes on the current interruption performance of LN2. Silicon iron arc chutes are employed. Neodymium (NdFeB) magnets are used to stretch the arc into the arc chutes. The maximum interrupting current is 1 kV/ 2 kA when only magnets are applied. Further applying the arc chutes leads to a significant drop in the arc voltage and interruption performance. Since the high relative permeability of silicon iron weakens the magnetic field acting on the arc, metal type arc chutes are not recommended. 1 kV / 10 kA fault current is successfully cleared by the combination of resistance type superconducting fault current limiter (R-SFCL) and LN2 switch with magnets, during which the R-SFCL responds to the fault within 420 μs, compensating the long clear time of the LN2 switch.
AB - The distributed propulsion aircraft with HTS electrical system is a novel concept for future airliners, which can reduce by more than 70% fuel burn and NOx emissions. The circuit breakers ensure the security of this novel aircraft by isolating electrical faults timely. Solid-state circuit breakers (SSCBs) are preferred due to their fast response and high performance in the cryogenic circumstance. However, the high conduction loss of SSCBs impedes their further application. A mechanical switch using liquid nitrogen (LN2) as an arc extinguishing medium shows excellent DC current interruption performance. The LN2 switch is characterized with extremely low contact resistance, and the proper use may reduce the conduction loss of power switches significantly. Nevertheless, the effect of metal type arc chutes on the arcing process in the LN2 is still not clear. Thus the objective of this paper is to understand the effect of metal type arc chutes on the current interruption performance of LN2. Silicon iron arc chutes are employed. Neodymium (NdFeB) magnets are used to stretch the arc into the arc chutes. The maximum interrupting current is 1 kV/ 2 kA when only magnets are applied. Further applying the arc chutes leads to a significant drop in the arc voltage and interruption performance. Since the high relative permeability of silicon iron weakens the magnetic field acting on the arc, metal type arc chutes are not recommended. 1 kV / 10 kA fault current is successfully cleared by the combination of resistance type superconducting fault current limiter (R-SFCL) and LN2 switch with magnets, during which the R-SFCL responds to the fault within 420 μs, compensating the long clear time of the LN2 switch.
KW - Arc Chute
KW - Cryogenic Power Electronics
KW - Distributed Propulsion Aircraft
KW - Liquid Nitrogen Switch
KW - Superconducting Fault Current Limiters
UR - http://www.scopus.com/inward/record.url?scp=85102622044&partnerID=8YFLogxK
U2 - 10.1109/TASC.2021.3064515
DO - 10.1109/TASC.2021.3064515
M3 - Article
VL - 31
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 5
M1 - 9372814
ER -