A. Solangi, Yuanfeng Zhou, M. Mohammadi, Risha Na, Z. Shen
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Selective Coordination of GaN-Based Solid State Circuit Breakers
While various types of solid state circuit breakers (SSCBs) were recently developed for DC power applications, the coordination and interaction of multiple SSCBs used in a hierarchical power distribution system are yet to be studied. This paper investigates autonomous selective coordination of three 380VDC/20A GaN-based intelligent solid-state circuit breakers without relying on communication in a two-level three-branch power circuit under both short circuit fault and inrush current conditions for the first time. Both experimental results and analysis are discussed in detail.