TY - GEN
T1 - Force Turn-off Method of SCR for UPS
AU - Lin, Chien Nan
AU - Liao, Hsuan
AU - Chen, Jiann Fuh
AU - Lo, Chun Pin
N1 - Funding Information:
This study is supported by the Delta Electronics Foundation, and it was financially supported by the Hierarchical Green-Energy Materials (Hi-GEM) Research Center, from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) in Taiwan, and the Ministry of Science and Technology under Project MOST 110-2221-E-006-125, MOST 110-2634-F-006-017.
Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - In this paper,developing a novel force turn-off method of silicon controlled rectifier (SCR) device. SCR is mainly used as a component of the UPS to be inserted into the static transfer switch (STS). Although SCR can withstand penetrating short-circuit current,it needs to have the ability to quickly cut off the fault current when an accident occurs. The current protection curve is used for uninterruptible power system (UPS) protection coordination and other problems. When an accident occurs,the proposed method can turn-off in a short time. A bypass STS for the online UPS by using SCR is proposed. The design procedure and analysis are presented in detail. The total shutdown time of SCR is less than 250$\mu$s,which is much shorter than the conventional shutdown method. The circuit also uses over-current protection. SIMPLIS$^{\mathbf{TM}}$ software is used to simulate the topologies,after which a mathematical analysis is provided. For demonstration,the proposed circuit is implemented to verify the feasibility.
AB - In this paper,developing a novel force turn-off method of silicon controlled rectifier (SCR) device. SCR is mainly used as a component of the UPS to be inserted into the static transfer switch (STS). Although SCR can withstand penetrating short-circuit current,it needs to have the ability to quickly cut off the fault current when an accident occurs. The current protection curve is used for uninterruptible power system (UPS) protection coordination and other problems. When an accident occurs,the proposed method can turn-off in a short time. A bypass STS for the online UPS by using SCR is proposed. The design procedure and analysis are presented in detail. The total shutdown time of SCR is less than 250$\mu$s,which is much shorter than the conventional shutdown method. The circuit also uses over-current protection. SIMPLIS$^{\mathbf{TM}}$ software is used to simulate the topologies,after which a mathematical analysis is provided. For demonstration,the proposed circuit is implemented to verify the feasibility.
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U2 - 10.1109/IFEEC53238.2021.9661837
DO - 10.1109/IFEEC53238.2021.9661837
M3 - Conference contribution
AN - SCOPUS:85124872611
T3 - 2021 IEEE International Future Energy Electronics Conference, IFEEC 2021
BT - 2021 IEEE International Future Energy Electronics Conference, IFEEC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Future Energy Electronics Conference, IFEEC 2021
Y2 - 16 November 2021 through 19 November 2021
ER -