Stabilization and analytical tuning rule of double-loop control scheme for unstable dead-time process

Analytical approach to tuning of model predictive control for first-order plus dead time models

Model predictive control (MPC) is an effective control strategy in the presence of system constraints. The successful implementation of MPC in practical applications requires appropriate tuning of the controller parameters. An analytical tuning strategy for MPC of first-order plus dead time (FOPDT) systems is presented when the constraints are inactive. The available tuning methods are generall...

Feedback Stabilization Control to High Order and Unstable System with Dead Time

The existing methods improved for the unstable objectives with dead time include Smith predictor, PID, IMC and others. There is little issue to deal with stabilization control of high order and unstable system with dead time. We employ the method of twice optimization control (TOC) for the unstable system with dead time. The factor e expands as a linear expression at first step. The controlled ...

PID controller frequency-domain tuning for stable, integrating and unstable processes, including dead-time

In the present paper a new tuning procedure is proposed for the ideal PID controller in series with the first-order noise filter. It is based on the recently proposed extension of the Ziegler–Nichols frequencydomain dynamics characterization of a process Gp(s). Measured process characteristics are the ultimate frequency and ultimate gain, the angle of the tangent to the Nyquist curve of the pro...

PID-Like Controller Tuning for Second-Order Unstable Dead-Time Processes

Several processes encountered in various fields of engineering exhibit an inherently unstable behaviour coupled with time delays. To approximate the open loop dynamics of such systems for the purpose of designing controllers, many of these processes can be satisfactorily described by unstable transfer function models. The most widely used models of this type is the unstable first order plus dea...

Design and Simulation of Double Loop Control for Power Converter Fed Variable Speed DC Drive