Paper Info
Title
High-Capacity MVDC Interruption Based on IGCT Current Sharing Integrated With Freewheeling
Abstract
Medium-voltage dc (MVdc) distribution systems have the advantages of high power density, low line loss and fast system response. However, the high rise rate and large peak value of short circuit current make the fault current interruption a critical problem in MVdc systems. To solve this problem, a novel circuit breaker scheme based on integrated gate-commutated thyristor (IGCTs) current sharing integrated with freewheeling is proposed in this article, which not only can ensure a high breaking capacity and short interruption time in the full current range, but also have superior vacuum interrupter recovery performance and high breaking reliability. The analysis of key factors, including stray parameters, inductance-capacitance (LC) parameters and arcing time, on the current commutation characteristics is presented, and the optimal design principle of the circuit breaker parameters is obtained. Finally, the proposed MVdc circuit breaker is verified with a 64.2 kA/10 kV fault current interruption experiment.
Year
DOI
Venue
2021
10.1109/TIE.2020.3034846
IEEE Transactions on Industrial Electronics
Keywords
DocType
Volume
DC circuit breakers (DCCB),integrated gate-commutated thyristor (IGCT),large capacity interruption,stray parameter optimization
Journal
68
Issue
ISSN
Citations 
11
0278-0046
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Xiaojiang Yu121.72
Yifei Wu211.75
Yi Wu313.44
Mingzhe Rong479.56
Fei Yang511.07
Chong Gao600.34
Sunhonghao Peng700.68