Analysis and design of adaptive internal model control for unstable process with dead time

A scheme of adaptive IMC for unstable process with dead time is proposed in This work. A negative feedback element is used to make this object stable, and adaptive internal model control strategy is adopted to design a control system. Because of the shortage of the classical internal model control system the performance of the control system would slip back if there exist large errors between the real plant and the model, an adaptive mechanism based single neuron which can tune the parameters of the internal model and that of controller in the control system on line is designed. The simulation results show that the adaptive internal model control system designed in This work has good performance of overcoming disturbance and deviations of model parameters.