TY - GEN
T1 - An Isolated Voltage Injection Based Hybrid Circuit Breaker for MVDC Applications
AU - Mirza, Abdul Basit
AU - Azadeh, Yalda
AU - Peng, Hongwu
AU - Luo, Fang
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - A MVDC hybrid circuit breaker (HCB) is proposed in this paper that consists of an electro-mechanical switch (EMS) in series with a voltage injector building block (VIBB). The VIBB-HCB does not employ any semiconductor devices in the line current path and utilizes a magnetic structure for injecting purpose that is unbiased in the normal operation, not interfering in line power path and without loss except the negligible winding copper losses. The EMS is being opened under zero voltage and zero current which makes the structure more reliable and the design of energy absorber easier. The injection circuit is isolated from the line. Hence, any surge or fault current does not impact the injection circuit. Also, by employing full bridge in the auxiliary converter, bidirectional fault clearing option is achieved for the proposed structure. Further, the design does not require large pre-charged capacitors for interrupting the fault. The proposed concept is validated through Finite Element Analysis, followed by experimental verification on a scaled down hardware prototype.
AB - A MVDC hybrid circuit breaker (HCB) is proposed in this paper that consists of an electro-mechanical switch (EMS) in series with a voltage injector building block (VIBB). The VIBB-HCB does not employ any semiconductor devices in the line current path and utilizes a magnetic structure for injecting purpose that is unbiased in the normal operation, not interfering in line power path and without loss except the negligible winding copper losses. The EMS is being opened under zero voltage and zero current which makes the structure more reliable and the design of energy absorber easier. The injection circuit is isolated from the line. Hence, any surge or fault current does not impact the injection circuit. Also, by employing full bridge in the auxiliary converter, bidirectional fault clearing option is achieved for the proposed structure. Further, the design does not require large pre-charged capacitors for interrupting the fault. The proposed concept is validated through Finite Element Analysis, followed by experimental verification on a scaled down hardware prototype.
KW - Hybrid Circuit Breaker (HCB)
KW - Integrated Magnetic Structure.
KW - Pulsed Power
KW - Voltage Injector Building Block (VIBB)
UR - https://www.scopus.com/pages/publications/85123345119
U2 - 10.1109/ECCE47101.2021.9595779
DO - 10.1109/ECCE47101.2021.9595779
M3 - Conference contribution
AN - SCOPUS:85123345119
T3 - 2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
SP - 608
EP - 612
BT - 2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th IEEE Energy Conversion Congress and Exposition, ECCE 2021
Y2 - 10 October 2021 through 14 October 2021
ER -