Abstract:

To decrease the effect of modelling error and unknown disturbance in an uncertain vehicle system, a robust D-stability control allocation scheme is presented. As the flight control system modularized, the robust D-stability output feedback control law based on virtual control is designed using a linear matrix inequality (LMI). The mixed optimization model of multi-objective control allocation is built, which is equally converted to a simple quadratic model that allocates the virtual control to effectors optimally. Simulation shows that the proposed method can consider the effectors’ efficiency and physical constraint effectively and track the instrument with a pleasing robust performance.