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

Tuning of IMC-Based PID Controllers for Integrating Systems with Time Delay [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: Design of Proportional Integral and Derivative (PID) controllers based on internal model control (IMC)) principles for various types of integrating systems with time delay is proposed. PID parameters are given in terms of process model parameters and a tuning parameter. The tuning parameter is IMC filter time constant. In the present work, the IMC filter (Q) is chosen in such a manner that the order of the denominator of IMC controller is one less than the order of the numerator. The IMC filter time constant (λ) is tuned in such a way that a good compromise is made between performance and robustness for both servo and regulatory problems. To improve servo response of the controller a set point filter is designed such that the closed loop response is similar to that of first order plus time delay system. The proposed controller design method is applied to various transfer function models and to the non-linear model equations of jacketed CSTR to demonstrate its applicability and effectiveness. The performance of the proposed controller is compared with the recently reported methods in terms of IAE and ITAE. The smooth functioning of the controller is determined in terms of total variation and compared with recently reported methods. Simulation studies are carried out on various integrating systems with time delay to show the effectiveness and superiority of the proposed controllers.

 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

Checking In With Mimo, ISA's Large Language Model Trained on ISA Content

Over the summer of 2024, the International Society of Automation (ISA) announced a large language model (...
Kara Phelps Nov 15, 2024 7:00:00 AM

Ask the Automation Pros: The Use of Artificial Intelligence in Process Control

The following discussion is part of an occasional series, "Ask the Automation Pros," authored by Greg McM...
Greg McMillan Nov 12, 2024 4:30:00 PM

Protecting Electrical Terminal Blocks From Tampering

Electrical terminal blocks are a common sight in the automation world. Usually mounted on DIN rail in ind...
Anna Goncharova Nov 8, 2024 10:30:00 AM