Journal ArticleDOI
On-line PI control of stable processes
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TLDR
In this article, a relay based on on-line automatic tuning method for PI controllers for stable processes is presented, prior to controller re-tuning a relay in tandem with the controller and plant induces limit cycle oscillations.About:
This article is published in Journal of Process Control.The article was published on 2005-12-01. It has received 35 citations till now. The article focuses on the topics: Control theory & Limit cycle.read more
Citations
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Journal ArticleDOI
A new design method for PI-PD control of unstable processes with dead time.
TL;DR: A simple design method to tune parameters of a PI-PD controller for the control of the unstable processes with time delay is presented based on plotting the stability boundary locus, which is a locus dependent on the parameters of the controller and frequency, in the parameter plane.
Journal ArticleDOI
Integral criteria for optimal tuning of PI/PID controllers for integrating processes
Ahmad Ali,Somanath Majhi +1 more
TL;DR: In this article, a new entrant to the family of evolutionary algorithms is used for minimization to avoid the local minima in the optimization procedure, and a setpoint filter is used to reduce the large overshoot.
Book ChapterDOI
An Overview of Tuning Rules for the PI and PID Continuous-Time Control of Time-Delayed Single-Input, Single-Output (SISO) Processes
TL;DR: This chapter will provide an outline of tuning rules for continuous-time PI and PID control of time-delayed single-input, single-output (SISO) processes.
A new concept on pi design for time delay systems: weighted geometrical center
TL;DR: In this article, a new concept on PI design for time delay systems is intro-duced, the concept is weighted geometrical center of the stabilizing controller parameters region, which is based on plotting the stability boundary locus in the (kp;ki) plane and then computing stabilizing values of the parameters of a PI controller.
Journal ArticleDOI
A Practical PI Tuning Approach For Time Delay Systems
TL;DR: The main characterization of the method is to obtain the stability region in the ( k p , k i )-plane using the stability boundary locus method and then to find the weighted geometrical center point of this region through its stability boundaries.
References
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Journal ArticleDOI
Automatic tuning of optimum PID controllers
M. Zhuang,Derek P. Atherton +1 more
TL;DR: In this article, the analytical procedures for obtaining optimum PID controller settings for minimisation of time weighted integral performance criteria are reviewed and two procedures for finding the required controller parameters for optimisation of the integral of time error squared criterion are presented.
Book
Introduction to stochastic control
TL;DR: In this article, a detailed treatment of the simpler problems, and filling the need to introduce the student to the more sophisticated mathematical concepts required for advanced theory by describing their roles and necessity in an intuitive and natural way.
Journal ArticleDOI
Autotuning and controller design for processes with small time delays
Somanath Majhi,Derek P. Atherton +1 more
TL;DR: In this paper, a set of general expressions derived from a single asymmetrical relay feedback test for online plant identification is derived, and conditions for the existence of limit cycles in unstable FOPDT and SOPDT processes are derived.
Journal ArticleDOI
Brief Relay auto-tuning of PID controllers using iterative feedback tuning
TL;DR: Good tuning performance according to the specified bandwidth and phase margin can be obtained and the limitation of the standard relay auto-tuning technique using a version of Ziegler-Nichols formula can be eliminated.
Journal ArticleDOI
A method for closed loop automatic tuning of PID controllers
TL;DR: A simple method for the automatic tuning of PID controllers in closed loop is proposed, where the amplitude and frequency of the oscillation are estimated and the control parameters are adjusted iteratively such that the closed loop transfer function from the controller reference to the process output attains a specified amplitude at the oscillations frequency.
Related Papers (5)
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Autotuning and controller design for processes with small time delays
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