TY - JOUR
T1 - A Novel DC Circuit Breaker with Counter-Current Injection and IGCT Combined
AU - Zhuang, Weibin
AU - Rong, Mingzhe
AU - Wu, Yifei
AU - Wu, Yi
AU - Xiao, Yu
AU - Wu, Xin
AU - Long, Chen
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - The fast fault clearance in medium-voltage direct current (MVdc) grids requires the dc circuit breakers (DCCBs) with high breaking capability and low cost. The traditional hybrid DCCB realizes large current interruption relying on several insulated gate bipolar transistors in parallel, which results in difficulty of cost reduction. In this article, a novel DCCB with counter-current injection and integrated gate-commutated thyristor (IGCT) combined is proposed and analyzed. By combining forced commutation and IGCT, the large current breaking capability can be realized and the low cost is guaranteed. The simulation of the proposed DCCB is performed to evaluate the fault current breaking capability and influence of circuit parameters consisting of stray parameters and precharged capacitors on current commutation processes. Furthermore, a prototype of the 10-kV MVdc circuit breaker with 20-kA breaking capability is developed, and then the fault current breaking test is carried out to verify the validity of the proposed topology which can cut off current within 2.5 ms.
AB - The fast fault clearance in medium-voltage direct current (MVdc) grids requires the dc circuit breakers (DCCBs) with high breaking capability and low cost. The traditional hybrid DCCB realizes large current interruption relying on several insulated gate bipolar transistors in parallel, which results in difficulty of cost reduction. In this article, a novel DCCB with counter-current injection and integrated gate-commutated thyristor (IGCT) combined is proposed and analyzed. By combining forced commutation and IGCT, the large current breaking capability can be realized and the low cost is guaranteed. The simulation of the proposed DCCB is performed to evaluate the fault current breaking capability and influence of circuit parameters consisting of stray parameters and precharged capacitors on current commutation processes. Furthermore, a prototype of the 10-kV MVdc circuit breaker with 20-kA breaking capability is developed, and then the fault current breaking test is carried out to verify the validity of the proposed topology which can cut off current within 2.5 ms.
KW - Commutation capability
KW - current commutation
KW - integrated gate-commutated thyristors (IGCTs)
KW - medium-voltage direct current (MVdc) circuit breaker
UR - https://www.scopus.com/pages/publications/85119626182
U2 - 10.1109/TPEL.2021.3118011
DO - 10.1109/TPEL.2021.3118011
M3 - 文章
AN - SCOPUS:85119626182
SN - 0885-8993
VL - 37
SP - 3451
EP - 3461
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 3
ER -