The scope of this paper is a precise analysis of countercurrent injection-assisted HVDC
circuit breaking. The considered topology consists of an outer diode rectifier for unipolar …

This article serves as a primer for dc circuit breakers and presents a basic overview of dc
power and dc applications in contrast with alternating current (ac) systems. This article also …

The use of a DC circuit breaker to open and isolate DC faults in a flexible DC grid is one of
the simplest and most reliable methods for handling DC faults. However, current limiting …

The series-type hybrid circuit breaker (S-HCB) is an effective solution for ultrafast dc fault
protection. However, the introduction of multiple energy storage (ES) capacitors and fully …

Recently the hybrid multi-port DC circuit breaker (MP-DCCB) is becoming popular in
protecting HVDC grids, thanks to their reduction of power electronics devices. In this paper …

This paper presents a performance evaluation in terms of applicability, response times,
energy dissipation, passive components and power semiconductors requirements of the four …

One of the most challenging hindrances to the spread use of the DC grids is their protection
devices. Due to the absence of zero crossing, when a fault occurs, arc extinction becomes …

The series-type hybrid circuit breaker (S-HCB) is an attractive solution for fault protection in
medium and low-voltage dc distribution networks, effectively suppressing fault current rise …

DC circuit breakers (DCCBs) play a significant role in obtaining the reliability and stability of
DC power systems. Selective and fast isolating of faults minimizes the power supply outages …

The hybrid dc circuit breaker is one of the most promising dc circuit breakers (DCCBs).
However, its cost is relatively high, and the completion of its fault isolation is significantly …