TY - GEN
T1 - Proactive Thyristor-Based DC Solid-State Circuit Breaker
AU - Kheirollahi, Reza
AU - Zhao, Shuyan
AU - Wang, Yao
AU - Zhang, Hua
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.
Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - This paper introduces a new proactive solid-state circuit breaker (P-SSCB) for direct current (dc) medium voltage applications. The P-SSCB aims to apply high-power rating thyristors while achieving a fast response speed and high efficiency. To manually turn off thyristors, a complimentary commutation technique is used; meanwhile, full-controlled switches are employed in the auxiliary branch to minimize the reaction time interval. To implement the complementary commutation and achieve a reliable turn-off process in the main thyristor, the injection capacitor in the auxiliary branch is charged by the dc system. The charging process of the injection capacitor is controlled by a thyristor, which helps to obtain a fast and reliable re-closing and re-breaking. During fault current interruption, the injection capacitor is prevented from being reversely charged using an anti-parallel diode to facilitate using polar capacitors. The proposed P-SSCB is validated in a medium-voltage dc test setup by experiments of 1.5 kV/265 A. The results show that the peak voltage across the main and auxiliary branches reaches 2895 V and 2852 V, respectively.
AB - This paper introduces a new proactive solid-state circuit breaker (P-SSCB) for direct current (dc) medium voltage applications. The P-SSCB aims to apply high-power rating thyristors while achieving a fast response speed and high efficiency. To manually turn off thyristors, a complimentary commutation technique is used; meanwhile, full-controlled switches are employed in the auxiliary branch to minimize the reaction time interval. To implement the complementary commutation and achieve a reliable turn-off process in the main thyristor, the injection capacitor in the auxiliary branch is charged by the dc system. The charging process of the injection capacitor is controlled by a thyristor, which helps to obtain a fast and reliable re-closing and re-breaking. During fault current interruption, the injection capacitor is prevented from being reversely charged using an anti-parallel diode to facilitate using polar capacitors. The proposed P-SSCB is validated in a medium-voltage dc test setup by experiments of 1.5 kV/265 A. The results show that the peak voltage across the main and auxiliary branches reaches 2895 V and 2852 V, respectively.
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U2 - 10.1109/APEC43580.2023.10131574
DO - 10.1109/APEC43580.2023.10131574
M3 - Conference contribution
AN - SCOPUS:85162267780
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1616
EP - 1621
BT - APEC 2023 - 38th Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 38th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2023
Y2 - 19 March 2023 through 23 March 2023
ER -