TY - GEN
T1 - MOV-RCD snubber design for medium-voltage SiC-Module based solid-state DC circuit breaker
AU - Zhao, Shuyan
AU - Kheirollahi, Reza
AU - Zhang, Hua
AU - Wang, Jun
AU - Lu, Xiaonan
AU - Lu, Fei
N1 - Funding Information:
ACKNOWLEDGMENT The information, data, or work presented herein was funded in part by the Advanced Research Projects Agency-Energy (ARPA-E), U.S. Department of Energy, under Award Number DE-AR0001114 in the BREAKERS program monitored by Dr. Isik Kizilyalli. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
Funding Information:
This work was supported by the Advanced Research Projects Agency-Energy, U.S. Department of Energy under Grant DE-AR0001114 in the BREAKERS program supervised by Dr. Isik Kizilyalli.
Publisher Copyright:
© 2021 IEEE.
PY - 2021/7/18
Y1 - 2021/7/18
N2 - Because of the lack of natural zero-crossing point and the existence of line inductance in a DC power system, the huge inductive energy can result in serious dv/dt issue across a DCCB during turning off, which could destroy power devices. RCD snubbers have been proposed to solve the dv/dt problem. However, investigations are still required to compare performance of RCD snubbers at different current magnitudes and different snubber capacitances. This paper proposes the design methodology of the MOV-RCD snubber for a medium voltage solid-state DCCB. Two prototypes are implemented to interrupt currents with different magnitudes. Experiments have validated that MOVRCD snubbers can achieve smooth dv/dt with a fast response speed; besides, the response time depends on the current magnitude, implying that an MOV-RCD snubber can achieve the best performance only when the current is in a proper range.
AB - Because of the lack of natural zero-crossing point and the existence of line inductance in a DC power system, the huge inductive energy can result in serious dv/dt issue across a DCCB during turning off, which could destroy power devices. RCD snubbers have been proposed to solve the dv/dt problem. However, investigations are still required to compare performance of RCD snubbers at different current magnitudes and different snubber capacitances. This paper proposes the design methodology of the MOV-RCD snubber for a medium voltage solid-state DCCB. Two prototypes are implemented to interrupt currents with different magnitudes. Experiments have validated that MOVRCD snubbers can achieve smooth dv/dt with a fast response speed; besides, the response time depends on the current magnitude, implying that an MOV-RCD snubber can achieve the best performance only when the current is in a proper range.
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U2 - 10.1109/ICDCM50975.2021.9504627
DO - 10.1109/ICDCM50975.2021.9504627
M3 - Conference contribution
AN - SCOPUS:85114921597
T3 - 2021 IEEE 4th International Conference on DC Microgrids, ICDCM 2021
BT - 2021 IEEE 4th International Conference on DC Microgrids, ICDCM 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE International Conference on DC Microgrids, ICDCM 2021
Y2 - 18 July 2021 through 21 July 2021
ER -