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 …

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 …

The present paper gives an optimal tuning procedure for design of Proportional Integral
Derivative (PID) controllers for open loop unstable First Order plus Time Delay systems …

In this paper, we present a new automatic tuning methodology for proportional-integral-
derivative-acceleration controllers. In particular, a (possibly high-order) model of the process …

The aim of this study was to present a relay shifting method for relay feedback identification
of dynamical systems suitable for PID controller tuning. The proposed technique uses a …

This paper presents a method which can be used to identify dynamical systems using a
biased relay feedback for control purposes. The method is applicable for systems …

The paper describes a new technique for estimation up to three points on a process
frequency response from a single biased-relay feedback test without using the FFT …

In this paper we evaluate the performance achieved by a tuning methodology based on
Internal Model Control for a Proportional-Integral-Derivative-Acceleration (PIDA) controller …

The relay (on–off) controller can stabilize wide ranges of processes including open-loop
stable, integrating, and unstable processes, producing sustained oscillations. For improved …

An enhanced event-based identification procedure for process control has been developed
based on the information obtained from the oscillations that an event-based sampler …