Charging Infrastructure for Battery Electric Aircraft : A Simulation Study

Abstract: Several models of battery electric aircraft are currently under development and are expected to be commercialized in the coming years. These electric aircraft are expected to require a significant amount of electrical power within a short period of time. Sweden is currently facing local and regional capacity issues in its electrical grid, leading to a decline in grid connection applications from new businesses. The objective of this thesis is to investigate the necessary charging infrastructure on-site to support an electrified air fleet. Additionally, the thesis aims to explore how local battery storage systems and a PV plant could be utilized to ensure a robust and resilient operation. In order to address these questions, a model of an airport has been developed using Matlab Simulink. A case study was conducted for an airport to demonstrate the practical application of the model. The results indicate that charging battery electric aircraft will impose a volatile power demand on the grid, with high peaks. Inadequate power supply leads to queuing issues and longer turnaround times. The results also highlight the significance of a battery storage system, as it enables the handling of more aircraft. A PV plant complements the battery storage system well, as it produces the majority of its power during peak traffic hours. The simulations further demonstrate that the PV plant helps recharge the battery storage system between the morning and afternoon traffic peaks. Moreover, detailed aircraft arrival data for the investigated airport is crucial for obtaining accurate results.