Practical Aspects Regarding the Propulsion of UAV Systems

This paper presents certain technological aspects regarding the propulsion of unmanned aerial vehicles (UAVs), which are dedicated to national security applications. The paper presents the current state of propulsion systems, focused on the field of electric machines for UAV systems, highlighting the contribution to these systems as well as presenting a technological solution of a dual excitation generator. In the last part of the paper, an experimental study is presented regarding the thermal behavior of the power distribution system of a captive multicopter (HOVER). Our results prove useful in choosing the type of power cables and power sources for UAV systems.