Robust suboptimal output stabilization for multi input multi output plants under disturbances

Present work provides the robust suboptimal control algorithm for an output stabilization of a linear multi-input multioutput (MIMO) plant with uncertainties. The algorithm combines robust control provided by auxiliary loop method for disturbances compensation and optimal control in the form of the linear quadratic regulator. In current research, plant is presented in form of linear interval model. This reflects plant parametric uncertainty and possibility to use the proposed method to control a nonlinear plant amenable to the interval linearization. The latter is used in the experimental illustration of the algorithm performance on the Twin Rotor MIMO System laboratory platform.