A 25kW Silicon Carbide 3kV/540V Series-Resonant Converter for Electric Aircraft Systems

Xinyuan Du, Fei Diao, Zhe Zhao, Yue Zhao
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引用次数: 3

Abstract

In this work, a 25 kW all silicon carbide (SiC) series-resonant converter (SRC) design is proposed to enable a single stage dc to dc conversion from 3kV to 540V (±270V) for future electric aircraft applications. The proposed SRC consists of a 3-level neutral-point-clamped (NPC) converter using 3.3kV discrete SiC MOSFETs on the primary side, a H-bridge converter using 900V SiC MOSFET modules on the secondary side and a high frequency (HF) transformer. The detailed design methods for the SRC power stage and the HF transformer are presented. Especially, a tradeoff between the complexity for the cooling system and the need for power density is addressed in the transformer design, leading to a novel multi-layer winding layout. To validate the effectiveness of the proposed SRC design, a converter prototype has been developed and comprehensive experimental studies are performed.
用于电动飞机系统的25kW碳化硅3kV/540V串联谐振变换器
在这项工作中,提出了一种25 kW的全碳化硅(SiC)串联谐振变换器(SRC)设计,以实现从3kV到540V(±270V)的单级直流到直流转换,用于未来的电动飞机应用。提出的SRC包括一个3电平中性点箝位(NPC)变换器,在初级侧使用3.3kV离散SiC MOSFET,在次级侧使用900V SiC MOSFET模块的h桥变换器和一个高频(HF)变压器。介绍了SRC功率级和高频变压器的详细设计方法。特别是,在变压器设计中解决了冷却系统复杂性和功率密度需求之间的权衡,导致了一种新颖的多层绕组布局。为了验证所提出的SRC设计的有效性,开发了一个转换器原型并进行了全面的实验研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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