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http://dx.doi.org/10.20910/JASE.2020.14.5.42

The Design of a Hybrid Engine System Based on a Reciprocal Engine For Unmanned Aerial Vehicles  

Gang, Byeong Gyu (Korea Aerospace Research Institute)
Kim, Keun-Bae (Korea Aerospace Research Institute)
Publication Information
Journal of Aerospace System Engineering / v.14, no.5, 2020 , pp. 42-48 More about this Journal
Abstract
This research illustrates how the hybrid engine system comprising of a two-cycle reciprocal engine with an integrated generator and a battery is prepared for the design process. The purpose of this research is to increase flight endurance taking advantage of the high energy density of hybrid propulsion systems as well as to cope with current environmental issues by reducing fossil fuel. The hybrid system is designed to offer 6 kW power, and the power can be adjusted by controlling the engine's RPM in accordance with load variations. In addition, the battery is adopted to offer extra electric power that this hybrid system cannot cover, and can function as the main power source in limited time in the case of an emergency situation. Besides that, the generator is directly mounted on an engine crank-shaft, and in turn, they can share the same RPM. Thus, it is hypothesized that this integration method can make a compact design possible by reducing space for the installation in the fuselage of UAVs.
Keywords
Two-Cycle Reciprocal Engine; System Controller; Generator; Electrical Propulsion System;
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