Modelling and Performance Impact of High Power/High Energy Battery Hybrids on Fixed-Wing eVTOL UAV

Fixed-wing eVTOL UAV are unmanned aerial vehicles with electric powertrains capable of both hover and fast wing-borne forward flight. The high power consumption of the electric powertrains during vertical flight is in conflict with the usage of high energy density batteries. This study suggests dual battery architectures assembled from both high energy and high power battery types and with different complexity levels to overcome this problem. A modelling approach on the fidelity level of conceptual aircraft is presented. In an exemplary study with different aircraft types, the battery architectures’ impact on aircraft performance is examined. With a single battery architecture as baseline, the results show improvements in endurance of 10 to 20% as a retrofit solution with current battery technology.     «

Fixed-wing eVTOL UAV are unmanned aerial vehicles with electric powertrains capable of both hover and fast wing-borne forward flight. The high power consumption of the electric powertrains during vertical flight is in conflict with the usage of high energy density batteries. This study suggests dual battery architectures assembled from both high energy and high power battery types and with different complexity levels to overcome this problem. A modelling approach on the fidelity level...     »