High voltage direct current (HVDC) systems are now well integrated into AC systems in
many jurisdictions. The integration of renewable energy sources (RESs) is a major focus …

The direct‐current circuit breaker (DCCB) is the most ideal choice for DC fault isolation in
DC grids. Despite a late start, China's research and development on the DCCB have made …

DC microgrids have attracted increasing attention due to their high efficiency, simple control,
and high power quality; however, circuit fault protection remains a technical challenge. Z …

DC fault isolation is one of the main challenges of the HVDC grid. DC fault current can be
interrupted within several milliseconds by employing hybrid HVDC circuit breaker. However …

A low-cost mechanical circuit breaker (MCB) is an important solution in the field of dc
breaking. However, the zero-crossing points in the breaking process of the existing MCBs …

Lots of dc circuit breakers have been proposed for protecting medium voltage dc systems.
However, they normally have one or more following limitations: low operational reliability …

The resistive superconducting fault current limiter (R-SFCL) is considered as a promising
protection device to restrict the DC fault current in modular multilevel converter based high …

DC microgrids have attracted more and more attention with its universality, high efficiency,
and potential application market. However, dc fault protection is still a challenge to the …

High-voltage DC (HVDC) circuit breaker is the necessary equipment for multiterminal HVDC
grids, which is a prospective power transmission method in the future. Therefore, the …

Current injection DC interruption is considered one of the most promising and innovative
technologies to address the need of fast fault isolation in medium-voltage DC systems due to …