Design of a High-Efficiency, High Specific-Power Three-Level T-Type Power Electronics Building Block for Aircraft Electric-Propulsion Drives
Design of a High-Efficiency, High Specific-Power Three-Level T-Type Power Electronics Building Block for Aircraft Electric-Propulsion Drives
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用于飞机电力推进驱动器的高效、高比功率三电平 T 型电力电子构建模块的设计
DOI：
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发表时间：
2020
影响因子：
5.5
通讯作者：
F. Luo
中科院分区：
文献类型：
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作者：
A. Deshpande;Yingzhuo Chen;B. Narayanasamy;Zhao Yuan;Cai Chen;F. Luo
电动飞机的电力推进驱动需要轻便高效的功率转换器。此外，一个模块化的方法来建设的驱动器，确保降低成本，可靠性和易于维护。本文首次报道了一种100kw， 1kv直流链路的模块化直流-交流三电平t型单相支路电力电子构件（PEBB）的设计和制造过程。采用由硅绝缘栅双极结晶体管（IGBT）和碳化硅金属氧化物半导体场效应晶体管（MOSFET）组成的混合开关（HyS）作为有源器件，实现了高功率下的高开关频率。拓扑结构和半导体选择基于基于模型的设计工具，以实现高转换效率和轻量化。由于商用三电平t型功率模块的不可用性，设计了印刷电路板（PCB）和现成的离散半导体高功率开关来实现中性点箝位。此外，设计了一种非普通铝基多层叠层母线，以促进所选有源器件与电容器组的低电感互连。测量到的电感表明母线上电流换相回路的对称性和值在28-29 nH范围内。块体的比功率和体积功率密度分别为27.7 kW/kg和308.61 W/in3。在48kva下演示了该块的连续运行。测试结果表明，该块的效率为98.2%。
The electric propulsion drives for the more-electric aircraft need lightweight and high-efficiency power converters. Moreover, a modular approach to the construction of the drive ensures reduced costs, reliability, and ease of maintenance. In this article, the design and fabrication procedure of a modular dc–ac three-level t-type single phase-leg power electronics building block (PEBB) rated for 100-kW, 1-kV dc-link is reported for the first time. A hybrid switch (HyS) consisting of a silicon insulated-gate bipolar junction transistor (IGBT) and silicon carbide metal–oxide–semiconductor field-effect transistor (MOSFET) was used as an active device to enable high switching frequencies at high power. The topology and semiconductor selection were based on a model-based design tool for achieving high conversion efficiency and lightweight. Due to the unavailability of commercial three-level t-type power modules, a printed circuit board (PCB) and off-the-shelf discrete semiconductor-based high-power switch was designed for the neutral-point clamping. Also, a nontrivial aluminum-based multilayer laminated bus bar was designed to facilitate the low-inductance interconnection of the selected active devices and the capacitor bank. The measured inductance indicated symmetry of both current commutation loops in the bus bar and value in the range of 28–29 nH. The specific power and volumetric power density of the block were estimated to be 27.7 kW/kg and 308.61 W/in3, respectively. The continuous operation of the block was demonstrated at 48 kVA. The efficiency of the block was measured to be 98.2%.