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A power routing switch using SiC-MOSFET has been developed for the future DC distribution network. The routing switch behaves as an intelligent relay, a circuit breaker and an inrush avoiding circuit. The circuit configuration of the routing switch is based on the non-isolated hard-switching DC-DC converter, and the surge voltage across the SiC-MOSFET is minimized by managing circuit parasitic parameters...
This paper considers the malfunction mechanism of semiconductor circuit breaker in high voltage DC power supply system (HVDC). In HVDC system, the fast response breaker is required. Semiconductor circuit breaker is paid attention as one of the key technology in HVDC. However, in some condition, the semiconductor circuit is malfunctioned. When malfunction is happened, unexpected large current is flown...
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