Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studies

Abstract Inverter‐based distributed generators (IBDGs), mainly solar photovoltaic, connected in medium‐voltage (MV) networks cause challenges, such as voltage limit violations, for distribution network service providers (DNSPs), and require advanced network management strategies to mitigate these ch...

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Main Authors: Mir Toufikur Rahman, Mingchen Gu, Moudud Ahmed, Kazi N. Hasan, Lasantha Meegahapola
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:IET Energy Systems Integration
Subjects:
Online Access:https://doi.org/10.1049/esi2.12154
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author Mir Toufikur Rahman
Mingchen Gu
Moudud Ahmed
Kazi N. Hasan
Lasantha Meegahapola
author_facet Mir Toufikur Rahman
Mingchen Gu
Moudud Ahmed
Kazi N. Hasan
Lasantha Meegahapola
author_sort Mir Toufikur Rahman
collection DOAJ
description Abstract Inverter‐based distributed generators (IBDGs), mainly solar photovoltaic, connected in medium‐voltage (MV) networks cause challenges, such as voltage limit violations, for distribution network service providers (DNSPs), and require advanced network management strategies to mitigate these challenges. A theoretical analysis of the voltage limit‐induced barrier to IBDG connection and their export limits due to the change in network characteristics is imperative for developing new strategies. The authors formulated a relationship between the network equivalent impedance and the IBDG's connection point in the network and further explored the link between the network equivalent impedance and voltage magnitude due to the IBDG connection point. The authors also assessed the voltage limit‐induced barrier to IBDG connections in MV networks and proposed solutions to overcome issues with the dynamic export limit of IBDGs. Four representative Australian MV networks are analysed in DIgSILENT PowerFactory under different scenarios, such as variation in IBDG location and static and dynamic export limits. The authors found that an IBDG connected at the end of the network can achieve better performance in supporting the network voltage. An IBDG with a dynamic export limit can export three times more energy than the static export limit, which benefits both the DNSPs and IBDG owners.
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spelling doaj-art-1396e6e4637244a29264db79e2a5c76d2025-08-20T02:32:12ZengWileyIET Energy Systems Integration2516-84012024-12-016456558010.1049/esi2.12154Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studiesMir Toufikur Rahman0Mingchen Gu1Moudud Ahmed2Kazi N. Hasan3Lasantha Meegahapola4School of Engineering RMIT University Melbourne Victoria AustraliaSchool of Engineering RMIT University Melbourne Victoria AustraliaSchool of Engineering RMIT University Melbourne Victoria AustraliaSchool of Engineering RMIT University Melbourne Victoria AustraliaSchool of Engineering RMIT University Melbourne Victoria AustraliaAbstract Inverter‐based distributed generators (IBDGs), mainly solar photovoltaic, connected in medium‐voltage (MV) networks cause challenges, such as voltage limit violations, for distribution network service providers (DNSPs), and require advanced network management strategies to mitigate these challenges. A theoretical analysis of the voltage limit‐induced barrier to IBDG connection and their export limits due to the change in network characteristics is imperative for developing new strategies. The authors formulated a relationship between the network equivalent impedance and the IBDG's connection point in the network and further explored the link between the network equivalent impedance and voltage magnitude due to the IBDG connection point. The authors also assessed the voltage limit‐induced barrier to IBDG connections in MV networks and proposed solutions to overcome issues with the dynamic export limit of IBDGs. Four representative Australian MV networks are analysed in DIgSILENT PowerFactory under different scenarios, such as variation in IBDG location and static and dynamic export limits. The authors found that an IBDG connected at the end of the network can achieve better performance in supporting the network voltage. An IBDG with a dynamic export limit can export three times more energy than the static export limit, which benefits both the DNSPs and IBDG owners.https://doi.org/10.1049/esi2.12154distributed power generationdistribution networks
spellingShingle Mir Toufikur Rahman
Mingchen Gu
Moudud Ahmed
Kazi N. Hasan
Lasantha Meegahapola
Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studies
IET Energy Systems Integration
distributed power generation
distribution networks
title Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studies
title_full Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studies
title_fullStr Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studies
title_full_unstemmed Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studies
title_short Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studies
title_sort analysis of voltage limit induced barrier for connecting inverter based distributed generators to medium voltage networks australian case studies
topic distributed power generation
distribution networks
url https://doi.org/10.1049/esi2.12154
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