4th International Conference on Engineering and Natural Sciences (ICENS), Kyyiv, Ukrayna, 2 - 06 Mayıs 2018, ss.994-1002
Unmanned aerial vehicles (UAV) are taking more attention in both civilian and army applications in the
world. One of the most important thing in UAV applications is to make an autonomous, fast and stable
control of a UAV. In this study, one of the fixed wing UAV model (Ultrastick -25e) is analyzed and
aerodynamic parameter coefficients of the UAV model which needed for dynamic equations are acquired
from literature. For that reason, firstly, as a classical control techniques of a fixed wing UAV, PID
controller is applied and transfer functions of different state variables are derived by using state-space
model. PID gains of state variables according to different control inputs are obtained by using Matlab
tuning and Ziegler-Nichols methods. Optimum PID gains, rise time, settling time, peak overshoots of the
roll, pitch and yaw dynamics are obtained. Future studies will give a chance to compare classical PID
controller results and modern control techniques in terms of altitude, roll and heading angle controller of
the UAV model.