Super‐Maneuver Flight Control Based on Predefined Time Extended State Observer and Control Allocation

ABSTRACT The supermaneuver flight control problem of fighter aircraft with thrust vector is addressed by proposing a cascade control strategy that incorporates disturbance compensation and control allocation technology. Firstly, an active disturbance rejection control (ADRC) strategy is introduced, which employs a predefined time extended state observer (PTESO) to ensure the convergence of the estimation errors within a predefined time. Secondly, control allocation technology is implemented to address the control allocation challenges in the over‐actuated system of fighter aircraft. In addition, an efficient control allocation technology is utilized to distribute the desired torque priority to the aerodynamic control surfaces, such that the longevity of the thrust vectoring nozzle is enhanced. Finally, numerical simulation results are conducted to verify the effectiveness of the proposed control strategy.