Fault current limiter

Patent metadata

Field	Value
Publication number	US-10424918-B2
Application number	US-201715491954-A
Country	US
Kind code	B2
Filing date	Apr 19, 2017
Priority date	Feb 27, 2017
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

A fault current limiter, including: an inductor, a direct current circuit breaker, a shunt resistor, and a first fixed resistor. The inductor includes wound superconducting wires. The direct current circuit breaker and the inductor are connected in series to form a series branch. The shunt resistor is connected in parallel to the series branch. The first fixed resistor is connected in parallel to the direct current circuit breaker.

First claim

The invention claimed is:

1. A fault current limiter, comprising:
an inductor;
a direct current circuit breaker;
a shunt resistor; and
a first fixed resistor;
wherein
the inductor is a superconducting inductor;
the inductor comprises wound superconducting wires;
the direct current circuit breaker and the inductor are connected in series to form a series branch;
the shunt resistor is connected in parallel to the series branch; and
the first fixed resistor is connected in parallel to the direct current circuit breaker.

2. The fault current limiter of claim 1 , wherein the shunt resistor is a second fixed resistor.

3. The fault current limiter of claim 1 , wherein the inductor is in a superconducting state when the fault current limiter is working.

4. The fault current limiter of claim 2 , wherein the inductor is in a superconducting state when the fault current limiter is working.

5. The fault current limiter of claim 3 , wherein the fault current limiter is disposed at a head or a tail of a direct current transmission line.

6. The fault current limiter of claim 4 , wherein the fault current limiter is disposed at a head or a tail of a direct current transmission line.

7. The fault current limiter of claim 5 , wherein the inductor is a hollow structure or comprises an iron core.

8. The fault current limiter of claim 6 , wherein the inductor is a hollow structure or comprises an iron core.

9. The fault current limiter of claim 1 , wherein the fault current limiter is configured to prevent quench of the superconducting inductor.

Assignees

• Univ Huazhong Science Tech

Inventors

• Ren Li
• Liang Siyuan
• Tang Yuejin
• Xu Ying
• Xia Zhong
• Wang Zuoshuai
• Shi Jing
• Li Jingdong
• Zhang Lihui
• Yan Sinian
• Yang Zhangwei
• Zhang Yi

Classifications

• H01F6/00

  Superconducting magnets; Superconducting coils {(magnetic resonance assemblies using superconducting coil systems G01R33/3815)} · CPC title

• H01F2006/001

  Constructive details of inductive current limiters · CPC title

• H01F38/023

  of inductances · CPC title

• H02H9/023 Primary

  Current limitation using superconducting elements · CPC title

• Y02E40/69

  Cross-Sectional Technologies · mapped topic