Improved Relay Feedback Identification using Shifting Method

M. Hofreiter

2019

Abstract

This paper presents a new method for estimation of a static gain and remaining parameters of a second order time delayed model by relay feedback identification. For this purpose, it uses a recently published method called shifting method which enables to estimate two points of frequency characteristic from a single relay feedback test. These two frequency response points are determined without any assumptions about a model transfer function and they can be used for fitting parameters of a process transfer function with various structures. For the first time the shifting method is used for a static gain estimation. This unique solution is even applicable under constant load disturbance. A great advantage for practical use is the comprehensibility and computational simplicity of the method. This identification method is primarily proposed for automatic tuning of controllers. The method is demonstrated on a simulated example and a laboratory apparatus “Air Aggregate”.

Paper Citation

in Harvard Style

Hofreiter M. (2019). Improved Relay Feedback Identification using Shifting Method.In Proceedings of the 16th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO, ISBN 978-989-758-380-3, pages 601-608. DOI: 10.5220/0007798406010608

in Bibtex Style

@conference{icinco19,
author={M. Hofreiter},
title={Improved Relay Feedback Identification using Shifting Method},
booktitle={Proceedings of the 16th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,},
year={2019},
pages={601-608},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007798406010608},
isbn={978-989-758-380-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 16th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,
TI - Improved Relay Feedback Identification using Shifting Method
SN - 978-989-758-380-3
AU - Hofreiter M.
PY - 2019
SP - 601
EP - 608
DO - 10.5220/0007798406010608