AUT Journal of Electrical Engineering

AUT Journal of Electrical Engineering

Backstepping control of Quanser’s 2-DOF Helicopter under disturbance and actuator saturation based on Flower Pollination Algorithm

Document Type : Research Article

Authors
1 Identification Command Control & Communication Laboratory, Faculty of Sciences and Technology, Mohamed Khider University, Biskra, Algeria
2 Department of Electronics, Mustapha Ben Boulaïd University, Batna, Algeria
10.22060/eej.2026.25565.5962
Abstract
This paper presents a robust backstepping control strategy for Quanser’s 2-Degree-of-Freedom (2-DOF) helicopter, addressing challenges posed by external disturbances and actuator saturation constraints. The proposed approach leverages Flower Pollination Algorithm (FPA) to fine-tune the control parameters, enhancing system stability and performance. Initially, a mathematical model of the 2-DOF helicopter is derived, incorporating non-linear dynamics and actuator limits. The backstepping control framework is then developed, integrating disturbance rejection mechanisms to mitigate external perturbations. FPA is employed to optimize the controller gains, ensuring optimal performance under various operational scenarios. Extensive simulation results demonstrate the effectiveness of the proposed method, displaying significant improvements in tracking accuracy and robustness against disturbances and actuator saturation compared to conventional control techniques. This study shows the potential of combining the proposed metaheuristic optimization algorithm with robust control strategy for complex aerospace systems like helicopter.
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