倾转翼飞机过渡段滑模切换控制OA

During the mode-switching process of the tiltrotor aircraft in the transition phase,it is often difficult to ensure the stability of the system using a traditional single controller.To address this issue,the complex system of the tiltrotor aircraft in the transition phase is simplified as a class of linear switched systems with uncertainties and external distur-bances.A state observer is designed to estimate the unmeasurable states of the system,and an integral sliding mode sur-face is introduced.Combined with the model-dependent average dwell time method,a sliding mode switching controller is designed.The feasible solution for the stability of the system during the switching process is obtained by solving the linear matrix inequality.Simulation results show that the designed sliding mode switching controller can maintain the stability of the system and better achieve the flight control of the tiltrotor aircraft in the transition phase.