Gain Normalized Adaptive Observer For Three-Phase System

Hafiz Ahmed; Miao Lin Pay; Mohamed Benbouzid; Yassine Amirat; Elhoussin Elbouchikhi

doi:10.1016/j.ijepes.2020.105821

Gain Normalized Adaptive Observer For Three-Phase System

Hafiz Ahmed, Miao Lin Pay, Mohamed Benbouzid, Yassine Amirat, Elhoussin Elbouchikhi

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Abstract

This paper proposes the estimation of parameters and symmetrical components of unbalanced grid using adaptive observer framework. Recent adaptive observers proposed in the literature doesn’t employ any gain normalization in their frequency estimation loop. This can be problematic in the presence of large voltage dip. This paper proposes a solution to overcome this limitation using a novel gain normalized - frequency-locked loop (GN-FLL). Technical details of GN-FLL, stability analysis and tuning are provided in this paper. Comparative experimental results with adaptive Luenberger observer, second-order generalized integrator - phase-locked loop (SOGI-PLL) and enhanced PLL (EPLL) are provided to demonstrate the effectiveness the proposed technique in the single-phase case. Comparative experimental results with double SOGI-FLL (DSOGI-FLL) and adaptive notch filter (ANF) are provided to demonstrate the effectiveness the proposed technique in the three-phase case.

Original language	English
Article number	105821
Journal	International Journal of Electrical Power and Energy Systems
Volume	118
Early online date	15 Jan 2020
DOIs	https://doi.org/10.1016/j.ijepes.2020.105821
Publication status	Published - Jun 2020

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Electrical Power and Energy Systems. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Electrical Power and Energy Systems, 118, (2020) DOI: 10.1016/j.ijepes.2020.105821

© 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

Frequency estimation
Frequency-Locked Loop (FLL)
Phase estimation
Three-phase sequence detection

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.ijepes.2020.105821

Post-PrintAccepted author manuscript, 4.39 MBLicence: CC BY-NC-ND

Cite this

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title = "Gain Normalized Adaptive Observer For Three-Phase System",

abstract = "This paper proposes the estimation of parameters and symmetrical components of unbalanced grid using adaptive observer framework. Recent adaptive observers proposed in the literature doesn{\textquoteright}t employ any gain normalization in their frequency estimation loop. This can be problematic in the presence of large voltage dip. This paper proposes a solution to overcome this limitation using a novel gain normalized - frequency-locked loop (GN-FLL). Technical details of GN-FLL, stability analysis and tuning are provided in this paper. Comparative experimental results with adaptive Luenberger observer, second-order generalized integrator - phase-locked loop (SOGI-PLL) and enhanced PLL (EPLL) are provided to demonstrate the effectiveness the proposed technique in the single-phase case. Comparative experimental results with double SOGI-FLL (DSOGI-FLL) and adaptive notch filter (ANF) are provided to demonstrate the effectiveness the proposed technique in the three-phase case.",

keywords = "Frequency estimation, Frequency-Locked Loop (FLL), Phase estimation, Three-phase sequence detection",

author = "Hafiz Ahmed and Pay, {Miao Lin} and Mohamed Benbouzid and Yassine Amirat and Elhoussin Elbouchikhi",

note = "NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in International Journal of Electrical Power and Energy Systems. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Electrical Power and Energy Systems, 118, (2020) DOI: 10.1016/j.ijepes.2020.105821 {\textcopyright} 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ ",

year = "2020",

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AU - Pay, Miao Lin

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AU - Amirat, Yassine

AU - Elbouchikhi, Elhoussin

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Electrical Power and Energy Systems. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Electrical Power and Energy Systems, 118, (2020) DOI: 10.1016/j.ijepes.2020.105821 © 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2020/6

Y1 - 2020/6

N2 - This paper proposes the estimation of parameters and symmetrical components of unbalanced grid using adaptive observer framework. Recent adaptive observers proposed in the literature doesn’t employ any gain normalization in their frequency estimation loop. This can be problematic in the presence of large voltage dip. This paper proposes a solution to overcome this limitation using a novel gain normalized - frequency-locked loop (GN-FLL). Technical details of GN-FLL, stability analysis and tuning are provided in this paper. Comparative experimental results with adaptive Luenberger observer, second-order generalized integrator - phase-locked loop (SOGI-PLL) and enhanced PLL (EPLL) are provided to demonstrate the effectiveness the proposed technique in the single-phase case. Comparative experimental results with double SOGI-FLL (DSOGI-FLL) and adaptive notch filter (ANF) are provided to demonstrate the effectiveness the proposed technique in the three-phase case.

AB - This paper proposes the estimation of parameters and symmetrical components of unbalanced grid using adaptive observer framework. Recent adaptive observers proposed in the literature doesn’t employ any gain normalization in their frequency estimation loop. This can be problematic in the presence of large voltage dip. This paper proposes a solution to overcome this limitation using a novel gain normalized - frequency-locked loop (GN-FLL). Technical details of GN-FLL, stability analysis and tuning are provided in this paper. Comparative experimental results with adaptive Luenberger observer, second-order generalized integrator - phase-locked loop (SOGI-PLL) and enhanced PLL (EPLL) are provided to demonstrate the effectiveness the proposed technique in the single-phase case. Comparative experimental results with double SOGI-FLL (DSOGI-FLL) and adaptive notch filter (ANF) are provided to demonstrate the effectiveness the proposed technique in the three-phase case.

KW - Frequency estimation

KW - Frequency-Locked Loop (FLL)

KW - Phase estimation

KW - Three-phase sequence detection

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M3 - Article

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VL - 118

JO - International Journal of Electrical Power and Energy Systems

JF - International Journal of Electrical Power and Energy Systems

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ER -

Gain Normalized Adaptive Observer For Three-Phase System

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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