A Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions

This paper presents a comprehensive approach for performing phasor and frequency estimation from voltage and/or current signals of the modern power system. Undesirable components, such as decaying DC, if present in the input signal, are first attenuated using a complex-gain filter. The initial estim...

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Autores principales:	Babak Jafarpisheh, Anamitra Pal
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	discrete Fourier transform (DFT) estimation of signal parameters via rotational invariance techniques (ESPRIT) frequency estimation phasor estimation Technology T
Acceso en línea:	https://doaj.org/article/f89db926e355443cb69039598c94694b
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spelling	oai:doaj.org-article:f89db926e355443cb69039598c94694b2021-11-11T15:54:27ZA Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions10.3390/en142171121996-1073https://doaj.org/article/f89db926e355443cb69039598c94694b2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7112https://doaj.org/toc/1996-1073This paper presents a comprehensive approach for performing phasor and frequency estimation from voltage and/or current signals of the modern power system. Undesirable components, such as decaying DC, if present in the input signal, are first attenuated using a complex-gain filter. The initial estimates of phasor and frequency are obtained next using the discrete Fourier transform and an improved estimation of signal parameters via rotational invariance technique, respectively. Finally, the accuracy of phasor and frequency estimates are increased based on the identified system condition. Simulations performed to evaluate the proposed approach confirm that it can do fast and accurate estimation of phasor and frequency under diverse operating conditions, making it ideal for wide-area monitoring, protection, and control applications in power systems.Babak JafarpishehAnamitra PalMDPI AGarticlediscrete Fourier transform (DFT)estimation of signal parameters via rotational invariance techniques (ESPRIT)frequency estimationphasor estimationTechnologyTENEnergies, Vol 14, Iss 7112, p 7112 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	discrete Fourier transform (DFT) estimation of signal parameters via rotational invariance techniques (ESPRIT) frequency estimation phasor estimation Technology T
spellingShingle	discrete Fourier transform (DFT) estimation of signal parameters via rotational invariance techniques (ESPRIT) frequency estimation phasor estimation Technology T Babak Jafarpisheh Anamitra Pal A Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions
description	This paper presents a comprehensive approach for performing phasor and frequency estimation from voltage and/or current signals of the modern power system. Undesirable components, such as decaying DC, if present in the input signal, are first attenuated using a complex-gain filter. The initial estimates of phasor and frequency are obtained next using the discrete Fourier transform and an improved estimation of signal parameters via rotational invariance technique, respectively. Finally, the accuracy of phasor and frequency estimates are increased based on the identified system condition. Simulations performed to evaluate the proposed approach confirm that it can do fast and accurate estimation of phasor and frequency under diverse operating conditions, making it ideal for wide-area monitoring, protection, and control applications in power systems.
format	article
author	Babak Jafarpisheh Anamitra Pal
author_facet	Babak Jafarpisheh Anamitra Pal
author_sort	Babak Jafarpisheh
title	A Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions
title_short	A Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions
title_full	A Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions
title_fullStr	A Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions
title_full_unstemmed	A Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions
title_sort	robust algorithm for real-time phasor and frequency estimation under diverse system conditions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f89db926e355443cb69039598c94694b
work_keys_str_mv	AT babakjafarpisheh arobustalgorithmforrealtimephasorandfrequencyestimationunderdiversesystemconditions AT anamitrapal arobustalgorithmforrealtimephasorandfrequencyestimationunderdiversesystemconditions AT babakjafarpisheh robustalgorithmforrealtimephasorandfrequencyestimationunderdiversesystemconditions AT anamitrapal robustalgorithmforrealtimephasorandfrequencyestimationunderdiversesystemconditions
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A Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions

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