Control of nonlinear systems by applying disturbance rejection control techniques

Presents a simple constructive procedure for the control system design of a certain class of nonlinear time-invariant multivariable systems, applying the method of disturbance rejection control. The state equation of the dynamical system considered contains certain nonlinearities, which affect the remaining linear subsystem by an input matrix. The measurements and the variables to be regulated are assumed to depend linearly on the state and the control input. A linear controller is derived such that its closed loop control system is partially asymptotically stable with respect to the variables being controlled, i.e. the influence of the nonlinearities is asymptotically rejected