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Fully Soft-Switched DC Solid-State Circuit Breakers
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DOI：10.1109/TPEL.2023.3237785.png)
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摘要
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This letter presents a new fully soft-switched dc solid-state circuit breaker. During dc current interruption, both main and auxiliary switches turn off under zero current switching (ZCS). A novel inductor-capacitor-capacitor-based active injection circuit is proposed. It eliminates transient power on switches with a fast operation, which enhances reliability. Experiments of a 350 V/90 A prototype validate the ZCS operation for both switches. The response speed reaches 4 mu s, and the maximum voltage on switches is 759 V, which is within a safe range. This letter is accompanied by slides as multimedia material demonstrating major innovations and contributions.
Keyword:
Active injection circuits
DC circuit breakers
solid-state circuit breakers
soft-switched circuit breakers
期刊
IF:
6.5
论文数:
1.7W
被引数:
8.3W
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