Station-keeping Control for a stratospheric Airship Platform via Fuzzy Adaptive Backstepping Approach
This paper presents a novel approach for station-keeping control of a stratospheric airship platform in the presence of parametric uncertainty and external disturbance. First, conceptual design of the stratospheric airship platform is introduced, including the target mission, configuration, energy sources, propeller and payload. Second, the dynamics model of the airship is derived, and the mathematical model of its horizontal motion is derived. Third, a fuzzy adaptive backstepping control approach is proposed to develop the station-keeping control system for the simplified horizontal motion. The backstepping controller is designed assuming that the airship model is accurately known, and a fuzzy adaptive algorithm is used to approximate the uncertainty of the airship model. The stability of the closed-loop control system is proven via the Lyapunov theorem. Finally, simulation results illustrate the effectiveness and robustness of the proposed control approach. âº We presented a novel concept design for stratospheric airship platforms. âº We derived a proper formulation of the airship station-keeping control problem. âº We designed a novel controller using fuzzy adaptive backstepping control approach. âº The fuzzy logic system is used to approximate the model uncertainty of the platform. âº The proposed control approach is robust against uncertainty and external disturbance.