DC solid-state circuit breaker (DC-SSCB) has been extensively studied at the breaker level with limited system-level considerations, which enables the electrified aircraft propulsion system with better fault-tolerant capability. This paper provides an all-in-one solution with integrated circuitries as the fault detector, actuator for semiconductor’s operating status regulation, and coordinated control to seamlessly transition from one mode to another. This allows the developed SSCB to limit system fault current not exceeding short-circuit current rating (SCCR) and take different responses under different fault cases.
