scholarly journals Surge Current Capability of IGBT Based Power Electronic Interrupter Modules for Hybrid DC Circuit Breaker Applications

2021 ◽  
Author(s):  
Lakshmi Ravi ◽  
Jian Liu ◽  
Dong Dong ◽  
Rolando Burgos ◽  
Cyril Buttay ◽  
...  
Keyword(s):  
Circuit Breaker ◽  
Power Electronic ◽  
Dc Circuit Breaker ◽  
Surge Current

scholarly journals Improvement of DC Fault Current Limiting and Interrupting Operation of Hybrid DC Circuit Breaker Using Double Quench

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4157
Author(s):  
Sang-Jae Choi ◽  
Jun-Hyup Lee ◽  
Jin-Wook Lee ◽  
Sung-Hun Lim
Keyword(s):  
Circuit Breaker ◽  
Fault Current ◽  
Power Electronic ◽  
Series Resonance ◽  
Dc Fault ◽  
Operational Characteristics ◽  
Current Limiting ◽  
Effective Operation ◽  
Dc Circuit Breaker ◽  
Circuit Power

In this paper, direct current (DC) fault current limiting and interrupting operation of hybrid DC circuit breaker (DCCB) using double quench, which consists of DCCB, a series resonance circuit, power electronic switch, surge arrestor, two separated current limiting reactor/resistor, and two superconducting elements, were suggested. The suggested hybrid DCCB can perform the interrupting operation after twice or once DC fault current limiting operation according to DC fault current amplitude. To verify the effective operation of the suggested hybrid DCCB, the modeling for the components of DCCB, the surge arrestor, and the SCE was carried out and its DC operational characteristics were analyzed. Through the analysis of the modeling results for the suggested hybrid DCCB, the advantages of hybrid DCCB were discussed.

scholarly journals A Current-Commutation DC Circuit Breaker with Adaptive Reclosing Capability

2021 ◽  
Vol 256 ◽  
pp. 01020
Author(s):  
Chunbing Jiang ◽  
Chengyong Zhao
Keyword(s):  
Electronic Devices ◽  
Circuit Breaker ◽  
Fault Isolation ◽  
Normal Operation ◽  
Fault Current ◽  
Power Electronic ◽  
Dc Fault ◽  
Current Commutation ◽  
Dc Circuit Breaker ◽  
A Current

DC faults are critical events in a flexible high-voltage dc (HVDC) grid. Thus, ensuring that the power system returns to normal operation rapidly and reliably after fault isolation is very important. This requires a HVDC breaker. In overhead line systems under temporary faults, reclosing is often required. However, once the dc circuit breaker (DCCB) is reclosed directly, the large second overcurrent may occur which could damage the power electronic devices. To avoid this problem, a current-commutation DC circuit breaker with adaptive reclosing capability is proposed. Compared with the traditional auto-reclosing strategy, the second damage under permanent fault condition can be avoided by the proposed DCCB, which can identify the fault property. Compared with the hybrid DCCB, the power electronic breaking branch composed of lots of IGBTs is replaced by the current-commutation branch, which is employed to interrupt bi-directional dc fault current. Moreover, bypassing branch is configured to reduce the energy dissipation of arrester and shorten the fault isolation time effectively. Finally, simulation cases in PSCAD /EMTDC verify the effectiveness and superiorities of the proposed DCCB.

Malfunction Issue of SiC-SIT Based DC Circuit Breaker in 400V DC Power Distribution Systems for Data Centers

2012 ◽  
Vol E95.B (6) ◽  
pp. 1990-1996
Author(s):  
Seiya ABE ◽  
Sihun YANG ◽  
Masahito SHOYAMA ◽  
Tamotsu NINOMIYA ◽  
Akira MATSUMOTO ◽  
...  
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Data Centers ◽  
Circuit Breaker ◽  
Power Distribution Systems ◽  
Dc Power ◽  
Dc Circuit Breaker

Combined Hybrid DC Circuit Breaker Capable of Controlling Current Flow

2020 ◽  
pp. 1-1
Author(s):  
Shuo Zhang ◽  
Guibin Zou ◽  
Xiuyan Wei ◽  
Chengquan Zhang
Keyword(s):  
Current Flow ◽  
Circuit Breaker ◽  
Dc Circuit Breaker
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