Synthesizing an Adaptive Controller to Enhance Movement Quality of a Flight Control Actuator under External Load

Abstract

The article provides a study into highperformance, efficient and reliable adaptive motion control over an electro-hydraulic actuator (EHA) considering external load disturbance impacting the system. The article considers the dynamics of an electro-hydraulic system taking into account servo-valve flow-pressure curves. In addition to the non-linear nature of hydraulic dynamics, an electro-hydraulic flight control actuator system is defined by the limited uncertainty of model description and is subject to external load disturbance. The synthesis of an adaptive system, which ensures a higher quality movement of a flight control actuator under external load, is carried out by the method of Lyapunov functions. The research was carried out in the MATLAB/ Simulink software environment.