TY - GEN
T1 - A novel model of thyristor in reverse recovery process for current interruption test of HVDC circuit breakers
AU - Dongye, Zhonghao
AU - Qi, Lei
AU - Cui, Xiang
AU - Guo, Xianshan
AU - Zhang, Hua
AU - Zheng, Sheng
AU - Lu, Fei
N1 - Funding Information:
Also, the information, data, or work presented herein was partly supported 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:
The information, data, or work presented herein was partly supported by the Science and Technology Project of SGCC (Contract No. SGTYHT/17-JS-199).
Funding Information:
The information, data, or work presented herein was partly supported by the Science and Technology Project of SGCC (Contract No. SGTYHT/17-JS-199). Also, the information, data, or work presented herein was partly supported 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:
© 2020 IEEE.
PY - 2020/6
Y1 - 2020/6
N2 - The high voltage thyristor is widely used in high voltage DC (HVDC) grids due to its large current capability. Recently, the high voltage thyristor is implemented to produce a high current in the HVDC circuit breaker (CB) testing process. Unfortunately, the reverse recovery process (RRP) of a thyristor could induce significant turn-off overvoltage and power losses, jeopardizing the safety of the devices. The existing models of a thyristor cannot describe such hard-switching transient accurately. Therefore, this paper divides this process into four stages based on the physical mechanism and proposes a novel cosine exponential (CE), simulating the voltage and current of the thyristor with analytical equations, which are derived from the equivalent circuit. Moreover, the extraction procedure of the proposed model is illustrated in this paper. Finally, we develop an HVDC CB test platform to validate the proposed model. Experimental results show that the proposed CE model can accurately predict the overvoltage with a relative error of less than 8% at various current varying rates.
AB - The high voltage thyristor is widely used in high voltage DC (HVDC) grids due to its large current capability. Recently, the high voltage thyristor is implemented to produce a high current in the HVDC circuit breaker (CB) testing process. Unfortunately, the reverse recovery process (RRP) of a thyristor could induce significant turn-off overvoltage and power losses, jeopardizing the safety of the devices. The existing models of a thyristor cannot describe such hard-switching transient accurately. Therefore, this paper divides this process into four stages based on the physical mechanism and proposes a novel cosine exponential (CE), simulating the voltage and current of the thyristor with analytical equations, which are derived from the equivalent circuit. Moreover, the extraction procedure of the proposed model is illustrated in this paper. Finally, we develop an HVDC CB test platform to validate the proposed model. Experimental results show that the proposed CE model can accurately predict the overvoltage with a relative error of less than 8% at various current varying rates.
UR - http://www.scopus.com/inward/record.url?scp=85096540825&partnerID=8YFLogxK
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U2 - 10.1109/ITEC48692.2020.9161739
DO - 10.1109/ITEC48692.2020.9161739
M3 - Conference contribution
AN - SCOPUS:85096540825
T3 - 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020
SP - 858
EP - 862
BT - 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020
Y2 - 23 June 2020 through 26 June 2020
ER -