Structure control for the disturbance rejection in two electromechanical processes

•The structure control is designed for the disturbance rejection.•The stability and convergence in the error of the proposed controller are guaranteed.•The proposed method is used for the disturbance rejection in two processes: a three phase circuit and a plotter.

In this study, the structure control is introduced for the disturbance rejection. The gains of the introduced method are selected to satisfy three objectives: the disturbance rejection, stability and convergence of the errors. The structure control design is based on the structure at infinity strategy, but the introduced technique has two advantages: the disturbance is unknown because it is not utilized in the control law; the condition of having equal values in the input and disturbance transfer functions is not required. The introduced technique is applied for the disturbance rejection in two electromechanical processes.