Overvoltage Protection of Thyristor in Bidirectional Hybrid Circuit Breaker

2021 ◽  
pp. 11-26
Author(s):  
Chenguang Yang ◽  
Xinle Sha ◽  
Shun Zou ◽  
Jie Li
Keyword(s):  
Circuit Breaker ◽  
Overvoltage Protection ◽  
Hybrid Circuit

scholarly journals Capacitor Commutation Method for MVDC Hybrid Circuit Breakers

Designs ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 28
Author(s):  
Hyosung Kim
Keyword(s):  
Short Circuit ◽  
Circuit Breaker ◽  
Reverse Current ◽  
Resonant Circuit ◽  
Power Circuit ◽  
Power Sources ◽  
Semiconductor Switch ◽  
Current Commutation ◽  
Dc Circuit Breaker ◽  
Hybrid Circuit

The medium voltage DC (MVDC) type system can connect multiple terminals to a common MVDC bus, so it is possible to connect several renewable DC power sources to the common MVDC bus, but a DC circuit breaker is needed to isolate short circuit accidents that may occur in the MVDC bus. For this purpose, the concept of a hybrid DC circuit breaker that takes advantage of a low conduction loss contact type switch and an arcless-breaking semiconductor switch has been proposed. During break the hybrid switch, a dedicated current commutation device is required to temporarily bypass the load current flowing through the main switch into a semiconductor switch branch. Existing current commutation methods include a proactive method and a reverse current injection method by a LC (Inductor-capacitor) resonant circuit. This paper proposes a power circuit of a new MVDC hybrid circuit breaker using a low withstanding voltage capacitor branch for commutation and a sequence controller according to it, and verifies its operation through an experiment.

A Bipolar Hybrid Circuit Breaker for Low-Voltage DC Circuits

2021 ◽  
Author(s):  
Sudipta Sen ◽  
Shahab Mehraeen ◽  
Keyue Smedley
Keyword(s):  
Low Voltage ◽  
Circuit Breaker ◽  
Hybrid Circuit

A Cost Effective Hybrid Circuit Breaker Topology for Moderate Voltage Applications

2018 ◽  
pp. 751-759
Author(s):  
D. S. Sanjeev ◽  
R. Anand ◽  
A. V. Ramana Reddy ◽  
T. Sudhakar Reddy
Keyword(s):  
Circuit Breaker ◽  
Cost Effective ◽  
Hybrid Circuit

A Series-Type Hybrid Circuit Breaker (S-HCB) Concept for Ultrafast DC Fault Protection

2022 ◽  
pp. 1-1
Author(s):  
Zheng John Shen ◽  
Yuanfeng Zhou ◽  
Risha Na ◽  
Triston Cooper ◽  
Mahmoud Al Ashi ◽  
...  
Keyword(s):  
Circuit Breaker ◽  
Fault Protection ◽  
Dc Fault ◽  
Series Type ◽  
Hybrid Circuit

A State-of-the-Art 500-kV Hybrid Circuit Breaker for a dc Grid: The World's Largest Capacity High-Voltage dc Circuit Breaker

2020 ◽  
Vol 14 (2) ◽  
pp. 15-27
Author(s):  
Xiangyu Zhang ◽  
Zhanqing Yu ◽  
Rong Zeng ◽  
Yulong Huang ◽  
Biao Zhao ◽  
...  
Keyword(s):  
High Voltage ◽  
State Of The Art ◽  
Circuit Breaker ◽  
Dc Circuit Breaker ◽  
Hybrid Circuit

Series Connection of Gas and Vacuum Circuit Breakers as a Hybrid Circuit Breaker in High-Voltage Applications

2020 ◽  
Vol 48 (7) ◽  
pp. 2577-2584
Author(s):  
Nicolas Gotte ◽  
Thomas Krampert ◽  
Paul Gregor Nikolic
Keyword(s):  
High Voltage ◽  
Circuit Breaker ◽  
Circuit Breakers ◽  
Series Connection ◽  
Hybrid Circuit

Investigation of DC hybrid circuit breaker based on high-speed switch and arc generator

2015 ◽  
Vol 86 (2) ◽  
pp. 024704 ◽  
Author(s):  
Yifei Wu ◽  
Mingzhe Rong ◽  
Yi Wu ◽  
Fei Yang ◽  
Mei Li ◽  
...  
Keyword(s):  
High Speed ◽  
Circuit Breaker ◽  
Hybrid Circuit
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