An Adaptive ADRC Strategy with Weight Function for Propeller Speed Control and Experimental Verification in Wind Tunnel

Electric propulsion system based on a propeller, driven by SPMSM directly, has been widely used in the aviation field. Due to the complexity of the wind field in the actual operating environment, the propeller speed controller needs the adaptive abilities to meet the system’s performance requirements. Aiming at the problems of traditional ADRC control strategy such as a lack of flexibility and dynamic response in the electric propulsion system, an adaptive ADRC strategy with weight function is proposed in this paper. Firstly, the mathematical model of the electric propulsion system is developed, and then the speed controller with linear and nonlinear characteristics is designed on the basis of an adaptive weight function. Subsequently, the descriptive function method is used to deal with the nonlinear processing in the system, and the stability and disturbance estimation of the system are analyzed on this basis. Finally, the wind tunnel tests and disturbance simulations of the electric propulsion system are carried out, and the experimental results verify the feasibility and effectiveness of the proposed strategy.