Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Source Transformation for AC Circuits

Source Transformation for AC Circuits

The process of source transformation in the frequency domain entails the conversion of a voltage source, positioned in series with an impedance, into a current source that is parallel to an impedance, or the other way around. It is essential to maintain the following relationships while transitioning from one source type to another.

Open and closed-loop control systems

Open and closed-loop control systems

Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal and...

Feedback control systems

Feedback control systems

Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...

Controller Configurations

Controller Configurations

Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller aligns...

PID Controller

PID Controller

Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...

Phase-lead and Phase-lag Controllers

Phase-lead and Phase-lag Controllers

Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass filters, manage...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Gut dysbiosis during early life: causes, health outcomes, and amelioration via dietary intervention.

Critical reviews in food science and nutrition·2021

Same author

About the traumatic aneurysm dissecans of the aorta.

Acta radiologica·2010

Same author

[p53 gene mutations in mouse skin tumors induced by DMBA-TPA-MNNG].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2001

Same author

Near-Infrared Spectrum of the A(2)Pi(i)-X(2)Sigma(+) (2,0) Band of CN Studied by Concentration Modulation Laser Spectroscopy.

Journal of molecular spectroscopy·2001

Same author

The influence of prednisolone on the secretion of MUC5AC from TH29-MTX cell culture

Clinical otolaryngology and allied sciences·2000

Same author

Multidrug Resistance and Prodrug Activation for Cancer Gene Therapy of Breast Cancer.

Breast cancer (Tokyo, Japan)·2000

Search research articles

Related Experiment Video

Updated: Jul 19, 2026

Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

Published on: April 19, 2021

Auto-tuning of TITO decoupling controllers from step tests

Wang¹, Huang, Guo

¹Department of Electrical Engineering, National University of Singapore, Singapore. elewqg@nus.edu.sg

ISA Transactions

|December 6, 2000

Summary

This study introduces robust auto-tuning for PI/PID controllers in two-input, two-output processes. The method effectively identifies process models for improved control system performance.

More Related Videos

Interactive and Visualized Online Experimentation System for Engineering Education and Research

Interactive and Visualized Online Experimentation System for Engineering Education and Research

Published on: November 24, 2021

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Published on: February 14, 2025

Related Experiment Videos

Last Updated: Jul 19, 2026

Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

Published on: April 19, 2021

Interactive and Visualized Online Experimentation System for Engineering Education and Research

Interactive and Visualized Online Experimentation System for Engineering Education and Research

Published on: November 24, 2021

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Published on: February 14, 2025

Area of Science:

Control Engineering
Process Automation
System Identification

Background:

Decentralized controllers offer advantages in complex industrial processes.
Tuning multivariable systems like two-input, two-output (TITO) processes remains challenging.
Existing methods may lack robustness or require extensive process knowledge.

Purpose of the Study:

To develop a robust auto-tuning methodology for TITO processes using decentralized PI/PID controllers.
To present a novel, robust identification method applicable to both single-input, single-output (SISO) and TITO systems.
To integrate model-based decoupler design with sequential PID controller tuning.

Main Methods:

A robust identification technique using step tests for SISO processes.
Sequential application of the identification method to TITO processes.
Design of a simple lead-lag decoupler based on a 1st-order plus dead-time (FOPDT) model.
Sequential tuning of decentralized PI/PID controllers using a 2nd-order process model.

Main Results:

Successful identification of SISO and TITO process models from step tests.
Effective design of lead-lag decouplers for TITO systems.
Demonstrated performance of the auto-tuned decentralized PI/PID controllers via simulation.
Robustness of the identification method shown in simulation examples.

Conclusions:

The proposed auto-tuning method provides an effective approach for controlling TITO processes.
The robust identification technique is a key enabler for model-based decoupler and controller design.
This methodology simplifies the tuning of complex multivariable control systems.