Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid Operation

This paper concerns the mitigation of voltage disturbances deteriorating power quality and disrupting the operation of LV distribution grids due to the high penetration of PV energy sources in prosumer installations. A novel control strategy for 3-phase 4-wire PV inverters is proposed, which ensures...

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Main Authors: Rozmysław Mieński, Irena Wasiak, Paweł Kelm
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/8/3479
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author Rozmysław Mieński
Irena Wasiak
Paweł Kelm
author_facet Rozmysław Mieński
Irena Wasiak
Paweł Kelm
author_sort Rozmysław Mieński
collection DOAJ
description This paper concerns the mitigation of voltage disturbances deteriorating power quality and disrupting the operation of LV distribution grids due to the high penetration of PV energy sources in prosumer installations. A novel control strategy for 3-phase 4-wire PV inverters is proposed, which ensures the transmission of PV active power and simultaneous compensation of load unbalance and reactive power, making the prosumer installation balanced and purely active. It results in the balance of phase voltages and the mitigation of their variability. Unlike other methods used for voltage regulation in LV grids, the proposed solution contributes to the reduction in losses, is simple, and does not require additional costs. In the paper, a control algorithm for the PV inverter is described. Its effectiveness was tested by simulation using a model of the real LV distribution grid developed in the PSCAD/EMTDC program. The results of the simulations are presented and evaluated.
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spelling doaj.art-63f488b431f14becac12918df3a04bb22023-11-17T19:05:47ZengMDPI AGEnergies1996-10732023-04-01168347910.3390/en16083479Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid OperationRozmysław Mieński0Irena Wasiak1Paweł Kelm2Institute of Electrical Power Engineering, Lodz University of Technology, 20 Stefanowskiego Street, 90-537 Lodz, PolandInstitute of Electrical Power Engineering, Lodz University of Technology, 20 Stefanowskiego Street, 90-537 Lodz, PolandInstitute of Electrical Power Engineering, Lodz University of Technology, 20 Stefanowskiego Street, 90-537 Lodz, PolandThis paper concerns the mitigation of voltage disturbances deteriorating power quality and disrupting the operation of LV distribution grids due to the high penetration of PV energy sources in prosumer installations. A novel control strategy for 3-phase 4-wire PV inverters is proposed, which ensures the transmission of PV active power and simultaneous compensation of load unbalance and reactive power, making the prosumer installation balanced and purely active. It results in the balance of phase voltages and the mitigation of their variability. Unlike other methods used for voltage regulation in LV grids, the proposed solution contributes to the reduction in losses, is simple, and does not require additional costs. In the paper, a control algorithm for the PV inverter is described. Its effectiveness was tested by simulation using a model of the real LV distribution grid developed in the PSCAD/EMTDC program. The results of the simulations are presented and evaluated.https://www.mdpi.com/1996-1073/16/8/3479prosumer installationPV integrationvoltage unbalancepower quality improvement3-phase 4-wire PV inverter
spellingShingle Rozmysław Mieński
Irena Wasiak
Paweł Kelm
Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid Operation
Energies
prosumer installation
PV integration
voltage unbalance
power quality improvement
3-phase 4-wire PV inverter
title Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid Operation
title_full Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid Operation
title_fullStr Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid Operation
title_full_unstemmed Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid Operation
title_short Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid Operation
title_sort integration of pv sources in prosumer installations eliminating their negative impact on the supplying grid and optimizing the microgrid operation
topic prosumer installation
PV integration
voltage unbalance
power quality improvement
3-phase 4-wire PV inverter
url https://www.mdpi.com/1996-1073/16/8/3479
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AT pawełkelm integrationofpvsourcesinprosumerinstallationseliminatingtheirnegativeimpactonthesupplyinggridandoptimizingthemicrogridoperation