This article presents a switch-mode rectifier-based electric power architecture with an integrated ground power unit for more electric aircraft. The well-regulated high-voltage dc-bus is established from the aircraft generator. And the conventional major 270-Vdc, 28-Vdc, and 115-Vac/400-Hz buses are also preserved. In landed conditions, the ground power unit function powered by the mains is inherently possessed thanks to the proposed integrated schematic. First, the developed switch-mode rectifier using a silicon-carbide device with a wide frequency range covering utility line frequency and aircraft generated varied high frequency is presented. The allowable energy storage inductances using the embedded generator armature winding are derived. Good generator armature power quality and well-regulated dc output voltage are preserved by the designed current and voltage control schemes. Next, the utility grid-powered ground power unit established by the embedded schematic is introduced. Finally, the inverter for generating the 115-Vac/400-Hz three-phase source and the dc–dc converter for establishing the 270-Vdc bus are constructed. Normal operations, good dynamic, and steady-state performances of all the constructed power stages are verified experimentally, which can confirm the feasibility of the proposed aircraft power architecture.

中文翻译：

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开发具有集成地面电源单元的飞机电力架构

本文介绍了一种基于开关模式整流器的电力架构，该架构具有集成地面电源单元，适用于更多电动飞机。良好调节的高压直流母线由飞机发电机建立。传统的主要 270-Vdc、28-Vdc 和 115-Vac/400-Hz 总线也得以保留。在着陆条件下，由于所提出的集成原理图，由市电供电的地面电源单元功能固有地具有。首先，介绍了使用碳化硅器件开发的开关模式整流器，该器件具有宽频率范围，涵盖公用线路频率和飞机产生的各种高频。推导出使用嵌入式发电机电枢绕组的允许储能电感。设计的电流和电压控制方案保持了良好的发电机电枢电能质量和良好调节的直流输出电压。下面介绍嵌入式原理图建立的公用电网供电的地面电源单元。最后，构建了用于产生 115-Vac/400-Hz 三相电源的逆变器和用于建立 270-Vdc 母线的 dc-dc 转换器。实验验证了所有构建的功率级的正常运行、良好的动态和稳态性能，这可以证实所提出的飞机动力架构的可行性。构建了用于产生 115-Vac/400-Hz 三相电源的逆变器和用于建立 270-Vdc 总线的 dc-dc 转换器。实验验证了所有构建的功率级的正常运行、良好的动态和稳态性能，这可以证实所提出的飞机动力架构的可行性。构建了用于产生 115-Vac/400-Hz 三相电源的逆变器和用于建立 270-Vdc 总线的 dc-dc 转换器。实验验证了所有构建的功率级的正常运行、良好的动态和稳态性能，这可以证实所提出的飞机动力架构的可行性。