Improved Relay Feedback Identification using Shifting Method

M. Hofreiter

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”.

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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