Along with the further study of multi-terminal VSC-HVDC and HVDC Grid, as the key
equipment, high voltage dc circuit breaker (DCCB) received great attention. Firstly, based on …

This paper investigates the design principles of a solid-state circuit breaker (SS CB) for
medium voltage direct current (MVDC) grids. The emphasis is given on the design of the …

High-voltage dc (HVdc) circuit breakers (CBs) are a key technology of multiterminal dc
(MTdc) systems and grids. In this article, a state-of-the-art 500-kV hybrid CB (HCB) topology …

Existing mechanical HVDC circuit breakers (CB) are capable of interrupting HVDC currents
within several tens of milliseconds, but this is too slow to satisfy the requirements of a …

Two key problems in meshed high-voltage direct current (HVDC) transmission grids are
managing line power flows and protection against dc faults. Current flow controllers (CFCs) …

The modelling principles for hybrid DC circuit breakers (CBs) which is developed to support
DC grid protection studies and transient studies involving DC protection are studied. The …

While the speed of operation of conventional circuit breakers for equipment (CBE) is suitable
for the majority of modern day equipment applications, ultra-sensitive solid-state circuitry of …

Direct current (dc) circuit breakers (DCCBs) play a key role in dc power system protection.
This paper aims to discuss two practical challenges of DCCBs technology in terms of …

The hybrid solid-state DC circuit breakers (DC CBs) have become one of the most promising
technologies to address the protection challenges within multi-terminal DC (MTDC) grids …

In this article, a modified hybrid dc breaker and a half-bridge modular multilevel converter
(MMC) are employed to interrupt the dc fault current in a high-voltage direct current …