DC Circuit Breaker Using Superconductor for Current Limiting

Author

Bin Xiang ; Zhiyuan Liu ; Yingsan Geng ; Yanabu, Satoru

Author_Institution

State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xi´an, China

Volume

25

Issue

2

fYear

2015

fDate

Apr-15

Firstpage

1

Lastpage

7

Abstract

The unavailability of high-capacity HVdc circuit breakers (CBs) is one of the key stoppers for building HVdc multiterminal networks. As the dc does not have a natural current zero, its interruption is very different. The objective of this paper is to propose a new type of dc CB (DCCB), including a current-limiting part and an interrupting part, which can interrupt a high short-circuit current. Experimental results show that the current-limiting part containing superconductor tapes and parallel resistance can limit the fault current from 20 to 1 or 2 kA very quickly within 1 ms. The interrupting part using the self-oscillation method can break this limited current. Therefore, this type of DCCB has the ability of interrupting a high short-circuit current.

Keywords

circuit breakers; circuit oscillations; superconducting fault current limiters; superconducting tapes; HVdc multiterminal networks; current 1 kA to 20 kA; current limiting; fault current; high-capacity HVdc circuit breakers; parallel resistance; self-oscillation method; short-circuit current; superconductor tapes; time 1 ms; Circuit breakers; Fault currents; High-temperature superconductors; Integrated circuit modeling; Interrupters; Resistance; Superconducting films; DC circuit breaker; Direct-current circuit breaker (DCCB); Gas circuit breaker; Parallel resistance; Self-oscillation circuit; Superconductor; gas circuit breaker (CB); parallel resistance; self-oscillation circuit; superconductor;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2014.2363058

Filename

6922495