A reliable and cost-effective mechanical direct current circuit breaker (DCCB) is a promising
solution for DC interruption. However, the typical mechanical DCCB has difficulty in …

To improve the breaking performances of current injection vacuum DC circuit breaker
(DCCB), a double-break current injection DCCB proposed. The opening moments of the two …

Two key challenges in meshed multi-terminal dc (MTdc) grids are line power flow
management and fault current interruption, which can be solved by current flow controllers …

With the rapid development of multiterminal direct current (MTDC) grids, high-voltage direct
current circuit breakers (HV-DCCB) capable of interrupting currents within 5 ms are in urgent …

Against the background of the application of the Voltage Source Converter (VSC)-based DC
grid technology, fault isolation by combining the converter without fault self-clearing ability …

Multiport hybrid dc circuit breakers (M-HCBs) have been recognized as suitable devices for
protecting dc grids. Most M-HCB topologies include load current switch (LCS), leads to …

This paper proposes a Hybrid Multi-Port DC Circuit Breaker (HMPDCCB) design that
addresses the limitations of existing hybrid DC circuit breakers (HDCCBs), such as high …

Interruption of DC is more challenging than that of AC because of the absence of DC zero-
crossings. This thesis proposes an alternative counter-voltage (ACV) DC hybrid circuit …

Vacuum circuit breakers (VCB) are commonly used in active mechanical direct current circuit
breakers (DC CBs) to accomplish the interruption of the fault current. The post-arc current …

Hybrid high voltage direct current circuit breakers (DCCBs) are capable of interrupting fault
current within a few milliseconds, but this technology has high capital cost, especially in a …