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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MDPI AG
2021
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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) |
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distribution management system distribution network Kalman filter smart meters state estimation weighted least squares Technology T |
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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 AT juandiegoriospenaloza threephasestateestimationofalowvoltagedistributionnetworkwithkalmanfilter AT fabiotossani threephasestateestimationofalowvoltagedistributionnetworkwithkalmanfilter AT albertoborghetti threephasestateestimationofalowvoltagedistributionnetworkwithkalmanfilter AT carloalbertonucci threephasestateestimationofalowvoltagedistributionnetworkwithkalmanfilter |
_version_ |
1718432449179942912 |