Title
Fast Model-Free Learning for Controlling a Quadrotor UAV With Designed Error Trajectory
Abstract
Traditional model-based control methods typically require accurate system dynamics. However, when controlling a complex non-linear system such as a quadrotor unmanned aerial vehicle (QUAV), the dynamics are unknown and it is challenging to tune the control parameters manually. This paper proposes a novel model-free learning method that combines the advantages of a model-based method, i.e., sliding mode control (SMC), with the iterative learning control (ILC) method. Specifically, we selected a designed sliding surface to obtain the expected tracking error trajectory as the learning objective, and the system tracking errors of the angles of the QUAV constitute the state space. Then, the policy of converging to the sliding surface is learned by an ILC algorithm. We have provided theoretical proof of the convergence, and validated the proposed method with real-world experiments where the sine wave signals of roll and pitch angles were tracked. The results have demonstrated the effectiveness of the method with less tracking errors as well as faster learning speed compared with a baseline PID controller and a sliding mode controller.
Year
DOI
Venue
2022
10.1109/ACCESS.2022.3194276
IEEE ACCESS
Keywords
DocType
Volume
Trajectory, Control systems, Mathematical models, Convergence, System dynamics, Sliding mode control, Heuristic algorithms, UAV, sliding mode control, iterative learning control, non-linear control, model-free
Journal
10
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Chen An100.34
Shengde Jia260.78
Jiaxi Zhou300.34
chang wang43312.55