To increase the current interrupting capability for the DC solid-state circuit breaker (DC-SSCB), power semiconductors need to possess a higher pulse current. Moreover, for the power electronics protection system, it is also important to enable the system with a fault current limitation capability. Accordingly, this digest aims to design an intelligent gate drive for DC-SSCB which can operate in cryogenic conditions to increase interrupting capability of the SSCB. Meanwhile, the proposed intelligent gate drive also enables the SSCB to operate in the current limitation mode to limit the overcurrent in the aviation system. Finally, test results based on a 200V/150A SSCB with the current limitation mode prototype verify the proposed intelligent gate drive design for SSCB with cryogenic cooling.
