Construction of an Electric Aircraft System Model with Power Device Losses

Abstract

In this paper, we developed a model of an electric aircraft that can calculate the losses of power devices in the power conversion circuits. the system of the electric aircraft model was constructed by referring to the system of the electric aircraft used in the FETHER (Flight demonstration of Electric Aircraft Technology for Harmonized Ecological Revolution) test of JAXA. The model of each component was explained. We describe how to calculate the power device losses of power conversion circuits, using LTspice to calculate the switching losses of power devices by analyzing half-bridge double-pulse tests with various parameters. We compared the simulation results of the electric aircraft model with the actual measured values. In order to confirm the difference in loss due to the difference in power devices, we compared the loss and aircraft range at same condition when assuming that GS66516B from GaN Systems and SCT3022AL from Rohm Semiconductor are used.