Abstract
This article presents an in-depth analysis of all electric-aircraft (AEA) architectures. This work aims to provide a global vision of the current AEA state of the art, to estimate the main technological gaps and drivers, and to identify the most promising architecture configuration for future electrical aircraft in the context of a twin-propeller 20-MW aircraft. The comparison between architectures is done based on three different figures of merit: reliability, efficiency, and specific power density. The methodology presented and the trade studies are applied to a narrowbody aircraft of 20 MW, equivalent to an Airbus A320, and following current efforts of government agencies to achieve cleaner air mobility within the next two decades.
Highlights
T HE contribution of the aerospace sector to CO2 global emissions amounts to 2.4%, and it is expected to continue increasing due to the constant growth of the sector, where passenger operation aviation is the main source of CO2 emissions
The second part of the analysis focuses on ac energy power system (EPS) architectures
A comparative analysis on all electric-aircraft (AEA) state-of-the-art architectures has been presented in this work and has yielded a set of promising EPS architectures that have been compared using three FoMs and covering both dc and ac distribution systems
Summary
T HE contribution of the aerospace sector to CO2 global emissions amounts to 2.4%, and it is expected to continue increasing due to the constant growth of the sector, where passenger operation aviation is the main source of CO2 emissions. In 2018, the International Air Transport Association (IATA) forecasted that the civil aviation industry will grow at a 3.5% rate for the two decades [1]. The impact of COVID-19 on aerospace industry may reduce this prospect momentarily, but efficient and greener solutions are of utter importance for the sector. Passenger operation is responsible for the majority of CO2. Manuscript received October 6, 2020; revised December 4, 2020; accepted December 19, 2020.
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