ISA Interchange

Welcome to the official blog of the International Society of Automation (ISA).

This blog covers numerous topics on industrial automation such as operations & management, continuous & batch processing, connectivity, manufacturing & machine control, and Industry 4.0.

The material and information contained on this website is for general information purposes only. ISA blog posts may be authored by ISA staff and guest authors from the automation community. Views and opinions expressed by a guest author are solely their own, and do not necessarily represent those of ISA. Posts made by guest authors have been subject to peer review.

All Posts

Auto-Tuning Method for Fractional Order PID Controllers [technical]

This post is an excerpt from the journal ISA Transactions. All ISA Transactions articles are free to ISA members, or can be purchased from Elsevier Press.

 

 

Abstract: Fractional order PID controllers benefit from an increasing amount of interest from the research community due to their proven advantages. The classical tuning approach for these controllers is based on specifying a certain gain crossover frequency, a phase margin and a robustness to gain variations. To tune the fractional order controllers, the modulus, phase and phase slope of the process at the imposed gain crossover frequency are required. Usually these values are obtained from a mathematical model of the process, e.g. a transfer function. In the absence of such model, an auto-tuning method that is able to estimate these values is a valuable alternative. Auto-tuning methods are among the least discussed design methods for fractional order PID controllers. This paper proposes a novel approach for the auto-tuning of fractional order controllers. The method is based on a simple experiment that is able to determine the modulus, phase and phase slope of the process required in the computation of the controller parameters. The proposed design technique is simple and efficient in ensuring the robustness of the closed loop system. Several simulation examples are presented, including the control of processes exhibiting integer and fractional order dynamics.

Free Bonus! To read the full version of this ISA Transactions article, click here.

Enjoy this technical resource article? Join ISA and get free access to all ISA Transactions articles as well as a wealth of other technical content, plus professional networking and discounts on technical training, books, conferences, and professional certification.

Click here to join ... learn, advance, succeed!

2006-2018 Elsevier Science Ltd. All rights reserved.


Related Posts

How Did Automation Professionals Benefit from ISA in 2024?

The International Society of Automation (ISA) is proud to be the professional home of thousands of member...
Kara Phelps Dec 17, 2024 9:30:00 AM

Ensuring RCM or DCS Redundancy and Its Security in a Complex Industrial Environment

In industrial automation, remote control managers (RCM) or distributed control systems (DCS) are critical...
Ashraf Sainudeen Dec 13, 2024 10:00:00 AM

ISA Podcast Explores Automation and Smart Agriculture

The International Society of Automation (ISA) podcast, Podomation, curates and shares insightful discussi...
Kara Phelps Dec 10, 2024 11:00:00 AM