Enhanced Active Resonant DC Circuit Breakers Based on Discharge Closing Switches

Direct current circuit breakers (DCCBs) have become a large research topic and are considered one of the critical components for future DC grids. Proposed DCCB concepts may be grouped into hybrid DCCBs active resonant DCCBs. In this work, enhanced (EAR) family is introduced. EAR combine elements The consists unidirectional six bidirectional concepts. All feature proactive commutation. main characteristic that discharge closing switches used instead semiconductors with turn-off capability. Relevant switch technology reviewed, laboratory prototype explained, experimental results presented to demonstrate feasibility proposed