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A Solid-State Circuit Breaker Without Current Limiting Inductor
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DOI：10.1109/TIA.2023.3268646.png)
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This paper presents a high-density, high-efficiency megawatt (MW) medium-voltage (MV) solid-state circuit breaker (SSCB) for aviation hybrid electric propulsion applications. The proposed SSCB is based on the mature silicon (Si) insulated gate bipolar transistor (IGBT) devices. With reduced IGBT gate voltage, the proposed SSCB can limit the peak fault current without the fault current limiting inductor. Thus, the specific power density of the SSCB is substantially improved compared with the traditional design. This method has negligible impact on SSCB efficiency, reliability and energy absorbed by the metal-oxide varistor (MOV), while providing additional mechanical layout freedom for power density and insulation enhancement. The potential design challenges due to the extremely high ramp rate of the system fault current and the corresponding solutions are also discussed. The performance of the proposed SSCB is validated with experimental results.
Keyword:
Current limiting inductor
electrified aircraft propulsion (EAP)
solid state circuit breaker (SSCB)
期刊
IF:
4.5
论文数:
1.1W
被引数:
3.5W
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