Investigating and Simulating DGs to Improve Voltage Profile and Reducing Power Loss in Unbalanced Distribution Networks

Development of Distributed generations (DGs) has changed the nature of power networks from passive to active. In order to specify a proper model for DG units, function and connection style of DGs to the network (direct or indirect) must be clarified. In this paper, operation of DGs in an unbalanced...

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Main Authors: Hassan Barati, Abdol Rasool Fatthi
Format: Article
Language:English
Published: VSB-Technical University of Ostrava 2014-01-01
Series:Advances in Electrical and Electronic Engineering
Subjects:
Online Access:http://advances.utc.sk/index.php/AEEE/article/view/911
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author Hassan Barati
Abdol Rasool Fatthi
author_facet Hassan Barati
Abdol Rasool Fatthi
author_sort Hassan Barati
collection DOAJ
description Development of Distributed generations (DGs) has changed the nature of power networks from passive to active. In order to specify a proper model for DG units, function and connection style of DGs to the network (direct or indirect) must be clarified. In this paper, operation of DGs in an unbalanced condition (due to unbalanced loads) will be studied. A three-phase power flow model is used to confirm the certainty of the proposed model. Generally DG modelling, depend on its type and controlling circuit, is like either PV or PQ bus. In this paper a three-phase unbalanced power flow model using Newton-Raphson method over a 4 buses power system is implemented. Based on the type of bus (PV or PQ), Simulation results show that the DGs can improve voltage profile (NEME and IEEE unbalance factor) and reduce network losses.
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spelling doaj.art-e7ce46eb8c684db4bee52cd6b2acf1372023-05-14T20:50:09ZengVSB-Technical University of OstravaAdvances in Electrical and Electronic Engineering1336-13761804-31192014-01-0112319220010.15598/aeee.v12i3.911661Investigating and Simulating DGs to Improve Voltage Profile and Reducing Power Loss in Unbalanced Distribution NetworksHassan Barati0Abdol Rasool FatthiDepartment of Electrical Engineering, Dezful Branch, Islamic Azad University, Dezful, IranDevelopment of Distributed generations (DGs) has changed the nature of power networks from passive to active. In order to specify a proper model for DG units, function and connection style of DGs to the network (direct or indirect) must be clarified. In this paper, operation of DGs in an unbalanced condition (due to unbalanced loads) will be studied. A three-phase power flow model is used to confirm the certainty of the proposed model. Generally DG modelling, depend on its type and controlling circuit, is like either PV or PQ bus. In this paper a three-phase unbalanced power flow model using Newton-Raphson method over a 4 buses power system is implemented. Based on the type of bus (PV or PQ), Simulation results show that the DGs can improve voltage profile (NEME and IEEE unbalance factor) and reduce network losses.http://advances.utc.sk/index.php/AEEE/article/view/911dgnetwork lossunbalance 3-phase power flowunbalance factorvoltage profile.
spellingShingle Hassan Barati
Abdol Rasool Fatthi
Investigating and Simulating DGs to Improve Voltage Profile and Reducing Power Loss in Unbalanced Distribution Networks
Advances in Electrical and Electronic Engineering
dg
network loss
unbalance 3-phase power flow
unbalance factor
voltage profile.
title Investigating and Simulating DGs to Improve Voltage Profile and Reducing Power Loss in Unbalanced Distribution Networks
title_full Investigating and Simulating DGs to Improve Voltage Profile and Reducing Power Loss in Unbalanced Distribution Networks
title_fullStr Investigating and Simulating DGs to Improve Voltage Profile and Reducing Power Loss in Unbalanced Distribution Networks
title_full_unstemmed Investigating and Simulating DGs to Improve Voltage Profile and Reducing Power Loss in Unbalanced Distribution Networks
title_short Investigating and Simulating DGs to Improve Voltage Profile and Reducing Power Loss in Unbalanced Distribution Networks
title_sort investigating and simulating dgs to improve voltage profile and reducing power loss in unbalanced distribution networks
topic dg
network loss
unbalance 3-phase power flow
unbalance factor
voltage profile.
url http://advances.utc.sk/index.php/AEEE/article/view/911
work_keys_str_mv AT hassanbarati investigatingandsimulatingdgstoimprovevoltageprofileandreducingpowerlossinunbalanceddistributionnetworks
AT abdolrasoolfatthi investigatingandsimulatingdgstoimprovevoltageprofileandreducingpowerlossinunbalanceddistributionnetworks