Three-Phase State Estimation of a Low-Voltage Distribution Network with Kalman Filter

The state estimation of distribution networks has long been considered a challenging task for the reduced availability of real-time measures with respect to the transmission network case. This issue is expected to be improved by the deployment of modern smart meters that can be polled at relatively...

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Autores principales: Fabio Napolitano, Juan Diego Rios Penaloza, Fabio Tossani, Alberto Borghetti, Carlo Alberto Nucci
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:ee0d8bd9f1b94d9092d68ffb553508182021-11-11T16:08:10ZThree-Phase State Estimation of a Low-Voltage Distribution Network with Kalman Filter10.3390/en142174211996-1073https://doaj.org/article/ee0d8bd9f1b94d9092d68ffb553508182021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7421https://doaj.org/toc/1996-1073The state estimation of distribution networks has long been considered a challenging task for the reduced availability of real-time measures with respect to the transmission network case. This issue is expected to be improved by the deployment of modern smart meters that can be polled at relatively short time intervals. On the other hand, the management of the information coming from many heterogeneous meters still poses major issues. If low-voltage distribution systems are of interest, a three-phase formulation should be employed for the state estimation due to the typical load imbalance. Moreover, smart meter data may not be perfectly synchronized. This paper presents the implementation of a three-phase state estimation algorithm of a real portion of a low-voltage distribution network with distributed generation equipped with smart meters. The paper compares the typical state estimation algorithm that implements the weighted least squares method with an algorithm based on an iterated Kalman filter. The influence of nonsynchronicity of measurements and of delays in communication and processing is analyzed for both approaches.Fabio NapolitanoJuan Diego Rios PenalozaFabio TossaniAlberto BorghettiCarlo Alberto NucciMDPI AGarticledistribution management systemdistribution networkKalman filtersmart metersstate estimationweighted least squaresTechnologyTENEnergies, Vol 14, Iss 7421, p 7421 (2021)
institution DOAJ
collection DOAJ
language EN
topic distribution management system
distribution network
Kalman filter
smart meters
state estimation
weighted least squares
Technology
T
spellingShingle distribution management system
distribution network
Kalman filter
smart meters
state estimation
weighted least squares
Technology
T
Fabio Napolitano
Juan Diego Rios Penaloza
Fabio Tossani
Alberto Borghetti
Carlo Alberto Nucci
Three-Phase State Estimation of a Low-Voltage Distribution Network with Kalman Filter
description The state estimation of distribution networks has long been considered a challenging task for the reduced availability of real-time measures with respect to the transmission network case. This issue is expected to be improved by the deployment of modern smart meters that can be polled at relatively short time intervals. On the other hand, the management of the information coming from many heterogeneous meters still poses major issues. If low-voltage distribution systems are of interest, a three-phase formulation should be employed for the state estimation due to the typical load imbalance. Moreover, smart meter data may not be perfectly synchronized. This paper presents the implementation of a three-phase state estimation algorithm of a real portion of a low-voltage distribution network with distributed generation equipped with smart meters. The paper compares the typical state estimation algorithm that implements the weighted least squares method with an algorithm based on an iterated Kalman filter. The influence of nonsynchronicity of measurements and of delays in communication and processing is analyzed for both approaches.
format article
author Fabio Napolitano
Juan Diego Rios Penaloza
Fabio Tossani
Alberto Borghetti
Carlo Alberto Nucci
author_facet Fabio Napolitano
Juan Diego Rios Penaloza
Fabio Tossani
Alberto Borghetti
Carlo Alberto Nucci
author_sort Fabio Napolitano
title Three-Phase State Estimation of a Low-Voltage Distribution Network with Kalman Filter
title_short Three-Phase State Estimation of a Low-Voltage Distribution Network with Kalman Filter
title_full Three-Phase State Estimation of a Low-Voltage Distribution Network with Kalman Filter
title_fullStr Three-Phase State Estimation of a Low-Voltage Distribution Network with Kalman Filter
title_full_unstemmed Three-Phase State Estimation of a Low-Voltage Distribution Network with Kalman Filter
title_sort three-phase state estimation of a low-voltage distribution network with kalman filter
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/ee0d8bd9f1b94d9092d68ffb55350818
work_keys_str_mv AT fabionapolitano threephasestateestimationofalowvoltagedistributionnetworkwithkalmanfilter
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AT fabiotossani threephasestateestimationofalowvoltagedistributionnetworkwithkalmanfilter
AT albertoborghetti threephasestateestimationofalowvoltagedistributionnetworkwithkalmanfilter
AT carloalbertonucci threephasestateestimationofalowvoltagedistributionnetworkwithkalmanfilter
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