An Optimized Reactive Power Control of Distributed Solar Inverters in Low Voltage Networks

Erhan Demirok, Dezso Sera, Remus Teodorescu, K. H. B. Frederiksen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

This study examines the reactive power ancillary services of solar inverters which are connected to low voltage (LV) distribution networks by giving attention to the grid voltage support service and grid losses. Two typical reference LV distribution network models as suburban and farm are introduced from the literature in order to evaluate contribution of two static droop strategies cosφ(P) and Q(U) on the grid voltage. Photovoltaic (PV) hosting capacities of the suburban and farm networks are estimated and the most predominant limitations of connecting more solar inverters are emphasized for each network type. Regarding the overloading of MV/LV distribution transformers, overloading of lines and the grid overvoltage limitations, new local grid voltage support methods (cosφ(P,U) and Q(U,P)) are also proposed. Resulting maximum allowable penetration levels with different reactive power methods are presented by load flow simulation.
Original languageEnglish
Title of host publication26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011)
Number of pages6
Place of PublicationHamburg, Germany
PublisherETA-Renewable Energies and WIP-Renewable Energies
Publication dateSep 2011
Publication statusPublished - Sep 2011
Event26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011) - Hamburg , Germany
Duration: 5 Sep 20116 Sep 2011

Conference

Conference26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011)
CountryGermany
CityHamburg
Period05/09/201106/09/2011

Fingerprint

Reactive power
Power control
Electric potential
Electric power distribution
Farms
Flow simulation

Cite this

Demirok, E., Sera, D., Teodorescu, R., & Frederiksen, K. H. B. (2011). An Optimized Reactive Power Control of Distributed Solar Inverters in Low Voltage Networks. In 26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011) Hamburg, Germany: ETA-Renewable Energies and WIP-Renewable Energies.
Demirok, Erhan ; Sera, Dezso ; Teodorescu, Remus ; Frederiksen, K. H. B. / An Optimized Reactive Power Control of Distributed Solar Inverters in Low Voltage Networks. 26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011). Hamburg, Germany : ETA-Renewable Energies and WIP-Renewable Energies, 2011.
@inproceedings{6edd17eb01b84feea4d5fb8fc2d33477,
title = "An Optimized Reactive Power Control of Distributed Solar Inverters in Low Voltage Networks",
abstract = "This study examines the reactive power ancillary services of solar inverters which are connected to low voltage (LV) distribution networks by giving attention to the grid voltage support service and grid losses. Two typical reference LV distribution network models as suburban and farm are introduced from the literature in order to evaluate contribution of two static droop strategies cosφ(P) and Q(U) on the grid voltage. Photovoltaic (PV) hosting capacities of the suburban and farm networks are estimated and the most predominant limitations of connecting more solar inverters are emphasized for each network type. Regarding the overloading of MV/LV distribution transformers, overloading of lines and the grid overvoltage limitations, new local grid voltage support methods (cosφ(P,U) and Q(U,P)) are also proposed. Resulting maximum allowable penetration levels with different reactive power methods are presented by load flow simulation.",
author = "Erhan Demirok and Dezso Sera and Remus Teodorescu and Frederiksen, {K. H. B.}",
year = "2011",
month = "9",
language = "English",
booktitle = "26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011)",
publisher = "ETA-Renewable Energies and WIP-Renewable Energies",

}

Demirok, E, Sera, D, Teodorescu, R & Frederiksen, KHB 2011, An Optimized Reactive Power Control of Distributed Solar Inverters in Low Voltage Networks. in 26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011). ETA-Renewable Energies and WIP-Renewable Energies, Hamburg, Germany, 26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011), Hamburg , Germany, 05/09/2011.

An Optimized Reactive Power Control of Distributed Solar Inverters in Low Voltage Networks. / Demirok, Erhan; Sera, Dezso; Teodorescu, Remus; Frederiksen, K. H. B.

26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011). Hamburg, Germany : ETA-Renewable Energies and WIP-Renewable Energies, 2011.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

TY - GEN

T1 - An Optimized Reactive Power Control of Distributed Solar Inverters in Low Voltage Networks

AU - Demirok, Erhan

AU - Sera, Dezso

AU - Teodorescu, Remus

AU - Frederiksen, K. H. B.

PY - 2011/9

Y1 - 2011/9

N2 - This study examines the reactive power ancillary services of solar inverters which are connected to low voltage (LV) distribution networks by giving attention to the grid voltage support service and grid losses. Two typical reference LV distribution network models as suburban and farm are introduced from the literature in order to evaluate contribution of two static droop strategies cosφ(P) and Q(U) on the grid voltage. Photovoltaic (PV) hosting capacities of the suburban and farm networks are estimated and the most predominant limitations of connecting more solar inverters are emphasized for each network type. Regarding the overloading of MV/LV distribution transformers, overloading of lines and the grid overvoltage limitations, new local grid voltage support methods (cosφ(P,U) and Q(U,P)) are also proposed. Resulting maximum allowable penetration levels with different reactive power methods are presented by load flow simulation.

AB - This study examines the reactive power ancillary services of solar inverters which are connected to low voltage (LV) distribution networks by giving attention to the grid voltage support service and grid losses. Two typical reference LV distribution network models as suburban and farm are introduced from the literature in order to evaluate contribution of two static droop strategies cosφ(P) and Q(U) on the grid voltage. Photovoltaic (PV) hosting capacities of the suburban and farm networks are estimated and the most predominant limitations of connecting more solar inverters are emphasized for each network type. Regarding the overloading of MV/LV distribution transformers, overloading of lines and the grid overvoltage limitations, new local grid voltage support methods (cosφ(P,U) and Q(U,P)) are also proposed. Resulting maximum allowable penetration levels with different reactive power methods are presented by load flow simulation.

M3 - Article in proceeding

BT - 26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011)

PB - ETA-Renewable Energies and WIP-Renewable Energies

CY - Hamburg, Germany

ER -

Demirok E, Sera D, Teodorescu R, Frederiksen KHB. An Optimized Reactive Power Control of Distributed Solar Inverters in Low Voltage Networks. In 26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011). Hamburg, Germany: ETA-Renewable Energies and WIP-Renewable Energies. 2011