Abstract
This paper presents a method of altitude control of the powered parafoil with uncertainties and disturbances based on sliding-mode backstepping control combined with a linear extended state observer (LESO). First, the dynamics of a powered parafoil is derived in the longitudinal plane using its inclination angle. The problem of altitude control is converted to the issue of angle control. Next, uncertainties and disturbances are considered as a total disturbance. An LESO is used to estimate the total disturbance and form an inner-loop compensation. Backstepping control is employed to regulate the inclination angle to follow the desired value. A fractional sliding surface is introduced to the backstepping control. This ensures the transient performance of altitude control of the powered parafoil. Then, stability analysis shows that the observation errors of the LESO are bounded and the control system is uniformly ultimately bounded. Simulation results of an 8 degree-of-freedom powered parafoil illustrate that the LESO can effectively estimate the states of the system and demonstrate the validity and the superiority of the presented method.
Funder
Changzhou Sci&Tech Program
Natural Science Foundation of Jiangsu Province
Talent Introduction Project of Jiangsu University of Technology
National Nature Science Foundation
Anhui University Top-notch Talents Academic Funding Project
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Reference25 articles.
1. Chambers, J. (2007). Longitudinal Dynamic Modeling and Control of Powered Parachute Aircraft. [Ph.D. Thesis, Rochester Institute of Technology].
2. Zhu, E., Zhao, J., Li, B., and Gao, H. (2021, January 22–24). Trajectory planning for the powered parafoil at insufficient height. Proceedings of the 33rd Chinese Control and Decision Conference, Kunming, China.
3. Li, B., Qi, J., Lin, T., Mei, S., and Han, J. (2015, January 24–27). Real-Time Data Acquisition and Model Identification for Powered Parafoil UAV. Proceedings of the 8th International Conference on Intelligent Robotics & Applications, Portsmouth, UK.
4. Computational aerodynamic modelling for flight dynamics simulation of ram-air parachutes;Aerosp. Sci. Technol.,2016
5. A generalized predictive control-based path following method for parafoil systems in wind environments;IEEE Access,2019
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