This contribution presents a solution to the dead time problem that is known as "Smith Predictor." allows us use already techniques for design of controllers systems without delay and adapt them with delay. "As goal, it aims achieve response system delay, has same dynamic characteristics example, step input, but displaced in value

Many industrially important processes feature both nonlinear system dynamics and a process deadtime. Powerful deadtime compensation methods, such as the Smith predictor, are available for linear systems represented by transfer functions. A Smith predictor structure in state space for linear systems is presented first and then directly extended to nonlinear systems. When combined with input /out...

In this paper, a new approach is presented based on relay autotuning of a plant to find parameters for its control using a Smith predictor. A Smith predictor configuration is represented as its equivalent internal model controller (IMC) which provides the parameters of the proportional-integral (PI) or proportional-integral-derivative (PID) controller to be defined in terms of the desired close...

This paper presents a set of autotuners for single input-output systems with time delay. Autotuners represent a combination of relay feedback identification and some control design method. In this contribution, models with up to three parameters are estimated by means of a single asymmetrical relay experiment. Then a stable low order transfer function with a time delay term is identified. Contr...

This paper investigates the robustness of a time delayed system controlled by a PI controller with a Smith Predictor used to compensate the dead time. A heat exchanger process is used as a test bed for the proposed control structure. Feed-forward control is used to compensate for the disturbance effect. The effectiveness of the design procedure is tested using Matlab-Simulink models and frequen...