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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2021, Vol. 42 ›› Issue (3): 625085-625085.doi: 10.7527/S1000-6893.2021.25085

• Special Topic of Electric Aircraft • Previous Articles    

Estimated model of range and endurance of small electric UAVs

ZHANG Maoquan, CHEN Haixin   

  1. School of Aerospace Engineering, Tsinghua University, Beijing 100084
  • Received:2020-12-10 Revised:2021-02-04 Published:2021-02-24

Abstract: Small electric UAVs usually use lithium battery, brushless motor and propeller as the energy power system. The working voltage of lithium battery decreases during the flight, but the total weight of the aircraft remains the same, that leads to the design method of battery powered UAVs is different from the traditional fuel powered aircraft. In this paper, the model of propulsion system for battery-powered aircraft is developed to accurately evaluate the influence of power system on aircraft design. Comparison with the experimental data has proved the model to be reliable. The range and endurance of a certain electric UAV are estimated by propulsion model and the results show that the modeling method in this paper is accurate and effective, which can be a reference for the design of small electric UAVs.

Key words: electric UAVs, propulsion system, modeling, lithium battery, aircraft design

CLC Number: