Comparison of various Control Techniques Applied to a Quadcopter

Abstract

A quadcopter is considered one of the most well-known examples of unmanned aerial vehicles (UAVS), because it has more advantages than standard helicopter in terms of size, efficiency, and safety. As a result, researchers are quite interested in it. In this paper, practical applications and various control techniques of the quadcopter are presented. This article summarizes an overview of quadcopter popular control strategies such as intelligent PID techniques, feedback linearization techniques, linear quadratic LQR techniques, sliding mode control techniques, and backstepping techniques, followed by analyses, pros, and cons of each control technique. The adaptive/observer-based augmentation of each nonlinear control technique is also discussed. Finally, our research prospects that the most important features of research and development quadcopter's future research will be directed by this focused literature. For each technique, the target and type of test of each research article are stated, making it easier for the researcher to select the research papers that best meet his objectives.

Surrogate Optimal Fractional Control for Constrained Operational Service of UAV Systems

“…This void in knowledge propelled authors to incorporate principles from fractional calculus, leveraging surrogate-based analysis and optimization techniques, to expand the stable operating range of UAV systems. Accordingly, a variety of control algorithms and architectures have been developed and investigated for quadrotor UAV systems [48,49]. Nevertheless, PID still has considerable significance for the stabilization and control of inner loops of the UAV systems.…”

Thrust Vectoring Control for Heavy UAVs, Employing a Redundant Communication System

“…Generally, hexagonal cases are equipped with more motors and propellers that provide more redundancy and improve control in the case of a motor failure. Thus, hexacopters are thus a well-liked option for heavy-lift applications [ 25 , 26 , 27 ]. As mentioned in the introduction, the solution provided in this paper involves installing flap vanes at the engine exhaust, which leads to employing a ducted-fan application.…”