Stabilization of UAV quadcopter

Abstract

This paper presents the stabilization controller design and implementa- tion of cost-effective UAV (unmanned aerial vehicle) quadcopter which can handle small disturbances and remain stable. PID controller provides stability by con- trolling the speed of quadcopter. Flight controller is used to control the speed of the propeller and also to monitor the orientation of the craft using accelerometer and gyroscope, and ESC continually adjusts the motor speeds to keep the airframe stable. Algorithm is also developed to control the quadcopter in a fraction of seconds. If the quadcopter deviates from the set position, flight controller auto- matically controls the quadcopter and maintains stability. Test cases for different tilt angle and manoeuvre along pitch, yaw, and roll were simulated using LabVIEW v11.0.1 environment and PID controller parameters are optimized to have quicker response time. Finally, the developed PID controller algorithm was implemented in the designed quadcopter and tested, which yields the desired performance.