In this paper, control of stable, unstable and integrating processes with large time delay in
the presence of uncertainty, external disturbances and measurement noise is investigated …

An improved tuning methodology of PID controller for standard second order plus time delay
systems (SOPTD) is developed using the approach of Linear Quadratic Regulator (LQR) …

Many researchers have achieved satisfactory control of unstable processes using complex
control structure involving two or more PI/PID controllers. However, a simple architecture is …

Quantitative Process Control Theory explains how to solve industrial system problems using
a novel control system design theory. This easy-to-use theory does not require designers to …

In this work, a recently reported two degree of freedom control structure namely the Parallel
Control Structure (PCS) is modified to achieve improved control performance for unstable …

A modified Smith predictor (MSP) with IMC based tuning is proposed for second order delay
dominated processes. These processes often exhibit unstable behaviour due to right half …

The stabilization of a class of all-pole unstable delay processes of arbitrary order with single
unstable pole by means of simple controllers is investigated in details. Complete …

This paper deals with the stability problem of linear delayed systems containing two
unstable real poles by means of PD controllers. The analysis presented is based on …

In this paper, a modified Smith predictor design is proposed for enhanced control of non-
minimum phase unstable second-order time-delay processes with/without zero. The …

This paper focuses on the fragility analysis of PI-controllers for single-input-single-output
(SISO) systems subject to input (or output) delays. Using a geometric approach, we present …