A Novel DC Circuit Breaker With Counter-Current Injection and IGCT Combined
IEEE Transactions on Power Electronics（2022）
Abstract
The fast fault clearance in medium-voltage direct current (MVdc) grids requires the dc circuit breakers (DCCBs) with high breaking capability and low cost. The traditional hybrid DCCB realizes large current interruption relying on several insulated gate bipolar transistors in parallel, which results in difficulty of cost reduction. In this article, a novel DCCB with counter-current injection and i...
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Key words
Fault currents,Topology,Circuit breakers,Voltage,Costs,Circuit faults,Capacitors
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