ScholarLens Back to search
1999•JOURNAL OF CHEMICAL ENGINEERING OF JAPANRequires access

Tuning of PI/PID Controllers Based on Specification on Maximum Closed-Loop Amplitude Ratio.

Cheng‐Liang Chen, Hsiao‐Ping Huang, Chung-Tyan Hsieh

Open publisher page 10 citations

Abstract

A simple PI/PID controller tuning formula is presented in this article, where the maximum closed-loop amplitude ratio in the frequency domain is set to +2 dB, a value recommended by Luyben (1990) for considering performance robustness. A first-order-plus-dead-time (FOPDT) model or a second-order-plus-dead-time (SOPDT) model is first identified for process dynamics. The PI/PID settings for the FOPDT/SOPDT models are then derived based on the internal model control (IMC) principle. The robustness parameter left for adjusting in the IMC tuning is determined according to the specified value of maximum closed-loop magnitude. Several testing processes with an extensive variety of dynamic characteristics are used, demonstrating the effectiveness and robustness of the proposed tuning method on typical processes.

About this research paper

What this paper is about

A simple PI/PID controller tuning formula is presented in this article, where the maximum closed-loop amplitude ratio in the frequency domain is set to +2 dB, a value recommended by Luyben (1990) for considering performance robustness. A first-order-plus-dead-time (FOPDT) model or a second-order-plus-dead-time (SOPDT) model is first identified for process dynamics. The PI/PID settings for the FOPDT/SOPDT models are then derived based on the internal model control (IMC) principle. The robustness parameter left for adjusting in the IMC tuning is determined according to the specified value of maximum closed-loop magnitude. Several testing processes with an extensive variety of dynamic characteristics are used, demonstrating the effectiveness and robustness of the proposed tuning method on typical processes.

Why it matters

OpenAlex reports 10 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

A simple PI/PID controller tuning formula is presented in this article, where the maximum closed-loop amplitude ratio in the frequency domain is set to +2 dB, a value recommended by Luyben (1990) for considering performance robustness. A first-order-plus-dead-time (FOPDT) model or a second-order-plus-dead-time (SOPDT) model is first identified for process dynamics. The PI/PID settings for the FOPDT/SOPDT models are then derived based on the internal model control (IMC) principle. The robustness parameter left for adjusting in the IMC tuning is determined according to the specified value of maximum closed-loop magnitude. Several testing processes with an extensive variety of dynamic characteristics are used, demonstrating the effectiveness and robustness of the proposed tuning method on typical processes.

Key concepts: PID controller, Control theory (sociology), Robustness (evolution), Dead time, Internal model, Amplitude, Closed loop, Pi

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Tuning of PI/PID Controllers Based on Specification on Maximum Closed-Loop Amplitude Ratio. — Research Paper | ScholarLens