Voltage RMS Estimation during a Fraction of the AC Period

The increasingly widespread occurrences of fast-changing loads, as in, for example, the charging of electrical vehicles and the stochastic output of PV generating facilities, are causing imbalances between generated and consumed power flows. The deviations in voltage cause noteworthy technical probl...

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Main Authors: Ido Amiel, Zekharya Danin, Moshe Sitbon, Moshe Averbukh
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/18/6892
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author Ido Amiel
Zekharya Danin
Moshe Sitbon
Moshe Averbukh
author_facet Ido Amiel
Zekharya Danin
Moshe Sitbon
Moshe Averbukh
author_sort Ido Amiel
collection DOAJ
description The increasingly widespread occurrences of fast-changing loads, as in, for example, the charging of electrical vehicles and the stochastic output of PV generating facilities, are causing imbalances between generated and consumed power flows. The deviations in voltage cause noteworthy technical problems. The tap-changers in today’s transformers are slow-reacting and thus cannot effectively correct the imbalance. Tap-changers should be replaced by special appliances, installed in distribution lines, that can effectively estimate voltage RMS and refine imbalances during a fraction of the AC period, preferably less than half. This article suggests specially developed methods for RMS assessment based on approximating instantaneous voltage magnitudes using harmonics and correcting coefficients.
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spelling doaj.art-ad0cb75574af493e8aa5323032bfdbe32023-11-23T18:50:58ZengMDPI AGSensors1424-82202022-09-012218689210.3390/s22186892Voltage RMS Estimation during a Fraction of the AC PeriodIdo Amiel0Zekharya Danin1Moshe Sitbon2Moshe Averbukh3Department of Electrical/Electronic Engineering, Ariel University, Ariel 40700, IsraelDepartment of Electrical/Electronic Engineering, Ariel University, Ariel 40700, IsraelDepartment of Electrical/Electronic Engineering, Ariel University, Ariel 40700, IsraelDepartment of Electrical/Electronic Engineering, Ariel University, Ariel 40700, IsraelThe increasingly widespread occurrences of fast-changing loads, as in, for example, the charging of electrical vehicles and the stochastic output of PV generating facilities, are causing imbalances between generated and consumed power flows. The deviations in voltage cause noteworthy technical problems. The tap-changers in today’s transformers are slow-reacting and thus cannot effectively correct the imbalance. Tap-changers should be replaced by special appliances, installed in distribution lines, that can effectively estimate voltage RMS and refine imbalances during a fraction of the AC period, preferably less than half. This article suggests specially developed methods for RMS assessment based on approximating instantaneous voltage magnitudes using harmonics and correcting coefficients.https://www.mdpi.com/1424-8220/22/18/6892AC voltage estimationRMS valueharmonic representationcorrecting coefficients
spellingShingle Ido Amiel
Zekharya Danin
Moshe Sitbon
Moshe Averbukh
Voltage RMS Estimation during a Fraction of the AC Period
Sensors
AC voltage estimation
RMS value
harmonic representation
correcting coefficients
title Voltage RMS Estimation during a Fraction of the AC Period
title_full Voltage RMS Estimation during a Fraction of the AC Period
title_fullStr Voltage RMS Estimation during a Fraction of the AC Period
title_full_unstemmed Voltage RMS Estimation during a Fraction of the AC Period
title_short Voltage RMS Estimation during a Fraction of the AC Period
title_sort voltage rms estimation during a fraction of the ac period
topic AC voltage estimation
RMS value
harmonic representation
correcting coefficients
url https://www.mdpi.com/1424-8220/22/18/6892
work_keys_str_mv AT idoamiel voltagermsestimationduringafractionoftheacperiod
AT zekharyadanin voltagermsestimationduringafractionoftheacperiod
AT moshesitbon voltagermsestimationduringafractionoftheacperiod
AT mosheaverbukh voltagermsestimationduringafractionoftheacperiod