Towards a New Generation of Relay Autotuners

Josefin Berner; Karl Johan Åström; Tore Hägglund

Towards a New Generation of Relay Autotuners

Josefin Berner, Karl Johan Åström, Tore Hägglund

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

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Abstract

The relay autotuner for PID control is based on the simple idea of investigating process dynamics by the oscillation obtained when the PID controller is replaced by a relay unction. In this paper an asymmetric relay function is used, which provides an equation for the static gain of the process. A method to find the normalized time delay is proposed and the benefits of this is discussed. Ways to find low-order models from the experiment are described. Considerations of how to choose the relay parameters are made and some examples are given.

Original language	English
Title of host publication	19th IFAC World Congress, 2014
Publication status	Published - 2014
Event	19th IFAC World Congress, 2014 - Cape Town, South Africa Duration: 2014 Aug 24 → 2014 Aug 29 Conference number: 19

Conference

Conference	19th IFAC World Congress, 2014
Country/Territory	South Africa
City	Cape Town
Period	2014/08/24 → 2014/08/29

Subject classification (UKÄ)

Control Engineering

Free keywords

normalized time delay
autotuning
asymmetric relay
parameter estimation.

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paper

Automatic Tuning
Berner, J. (Researcher), Soltesz, K. (Researcher), Hägglund, T. (Researcher) & Åström, K. J. (Researcher)
2016/01/01 → 2022/12/31
Project: Research
PID Control
Robertsson, A. (Researcher), THEORIN, A. (Researcher), Bernhardsson, B. (Researcher), Berner, J. (Researcher), Åström, K. J. (Researcher), Hast, M. (Researcher), Garpinger, O. (Researcher), Larsson, P.-O. (Researcher), Hägglund, T. (Researcher), Romero Segovia, V. (Researcher) & Soltesz, K. (PI)
1900/01/01 → 2022/05/01
Project: Research

19th IFAC World Congress, 2014
Berner, J. (Speaker)
2014 Aug 24 → 2014 Aug 29
Activity: Talk or presentation › Presentation

Cite this

@inproceedings{1778b4706724413495e4cb1005640c9b,

title = "Towards a New Generation of Relay Autotuners",

abstract = "The relay autotuner for PID control is based on the simple idea of investigating process dynamics by the oscillation obtained when the PID controller is replaced by a relay unction. In this paper an asymmetric relay function is used, which provides an equation for the static gain of the process. A method to find the normalized time delay is proposed and the benefits of this is discussed. Ways to find low-order models from the experiment are described. Considerations of how to choose the relay parameters are made and some examples are given.",

keywords = "normalized time delay, autotuning, asymmetric relay, parameter estimation.",

author = "Josefin Berner and {\AA}str{\"o}m, {Karl Johan} and Tore H{\"a}gglund",

year = "2014",

language = "English",

booktitle = "19th IFAC World Congress, 2014",

note = "19th IFAC World Congress, 2014 ; Conference date: 24-08-2014 Through 29-08-2014",

}

TY - GEN

T1 - Towards a New Generation of Relay Autotuners

AU - Berner, Josefin

AU - Åström, Karl Johan

AU - Hägglund, Tore

N1 - Conference code: 19

PY - 2014

Y1 - 2014

N2 - The relay autotuner for PID control is based on the simple idea of investigating process dynamics by the oscillation obtained when the PID controller is replaced by a relay unction. In this paper an asymmetric relay function is used, which provides an equation for the static gain of the process. A method to find the normalized time delay is proposed and the benefits of this is discussed. Ways to find low-order models from the experiment are described. Considerations of how to choose the relay parameters are made and some examples are given.

AB - The relay autotuner for PID control is based on the simple idea of investigating process dynamics by the oscillation obtained when the PID controller is replaced by a relay unction. In this paper an asymmetric relay function is used, which provides an equation for the static gain of the process. A method to find the normalized time delay is proposed and the benefits of this is discussed. Ways to find low-order models from the experiment are described. Considerations of how to choose the relay parameters are made and some examples are given.

KW - normalized time delay

KW - autotuning

KW - asymmetric relay

KW - parameter estimation.

M3 - Paper in conference proceeding

BT - 19th IFAC World Congress, 2014

T2 - 19th IFAC World Congress, 2014

Y2 - 24 August 2014 through 29 August 2014

ER -

Towards a New Generation of Relay Autotuners

Abstract

Conference

Subject classification (UKÄ)

Free keywords

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Projects

Automatic Tuning

PID Control

Activities

19th IFAC World Congress, 2014

Cite this