Step and relay feedback tests have been widely used for model identification in the process
industry. The corresponding identification methods developed in the past three decades are …

Discontinuous control systems are the oldest type of control system and the
mostwidespreadtypeofnonlinearcontrolsystem. Thetheoryofdiscontinuous control, and the …

Industrial Process Identification and Control Design is devoted to advanced identification
and control methods for the operation of continuous-time processes both with and without …

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 …

In this paper two novel autotuners are compared with two industrially available ones. The
aim is to see if the research frontline can improve the industry standard of today …

The paper extends a recent work on a modified PI-PD Smith predictor, which leads to
significant improvements in the control of processes with large time constants or an …

The focus of this contribution is twofold. The first part aims at the rigorous and complete
analysis of pole loci of a simple delayed model, the characteristic function of which is …

In process industries, closed-loop step and closed-loop relay feedback tests are popularly
used for estimating model parameters. In this paper, different methods available in the …

In conventional single feedback control, the corrective action for disturbances does not
begin until the controlled variable deviates from the set point. In this case, a cascade control …

A model-based PI-PD controller design, where the PD feedback is used to change the poles
of the plant transfer function to more desirable locations for control by a PI controller, is …