Transformer‐less unified power flow controller in medium voltage distribution networks

Abstract A transformer‐less unified power flow controller (UPFC) is a power electronic device consisting of series and shunt voltage source converters (VSCs) that are not connected to a common DC bus. It can control power flow in medium voltage (MV) distribution networks without the need for interfa...

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Main Authors: Mohamed A. Abdelrahman, Sheng Wang, Wenlong Ming, Jianzhong Wu, Nick Jenkins
Format: Article
Language:English
Published: Wiley 2023-03-01
Series:IET Generation, Transmission & Distribution
Subjects:
Online Access:https://doi.org/10.1049/gtd2.12730
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author Mohamed A. Abdelrahman
Sheng Wang
Wenlong Ming
Jianzhong Wu
Nick Jenkins
author_facet Mohamed A. Abdelrahman
Sheng Wang
Wenlong Ming
Jianzhong Wu
Nick Jenkins
author_sort Mohamed A. Abdelrahman
collection DOAJ
description Abstract A transformer‐less unified power flow controller (UPFC) is a power electronic device consisting of series and shunt voltage source converters (VSCs) that are not connected to a common DC bus. It can control power flow in medium voltage (MV) distribution networks without the need for interfacing transformers. Hence there is a significant reduction in size and cost compared to a conventional UPFC. This paper investigates the operating range of a transformer‐less UPFC in an MV distribution network and the required power ratings of the series and shunt converters. The results showed that a transformer‐less UPFC is able to provide active power control using partially rated converters. However, its ability to control reactive power is limited by the current ratings of the converters. The analysis was verified using software simulation and hardware experiment.
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spelling doaj.art-3240c2f58e5b4d19ab3571d9d1ea911b2023-03-24T06:56:07ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952023-03-011761243125510.1049/gtd2.12730Transformer‐less unified power flow controller in medium voltage distribution networksMohamed A. Abdelrahman0Sheng Wang1Wenlong Ming2Jianzhong Wu3Nick Jenkins4School of Engineering Cardiff University Cardiff UKSchool of Engineering Cardiff University Cardiff UKSchool of Engineering Cardiff University Cardiff UKSchool of Engineering Cardiff University Cardiff UKSchool of Engineering Cardiff University Cardiff UKAbstract A transformer‐less unified power flow controller (UPFC) is a power electronic device consisting of series and shunt voltage source converters (VSCs) that are not connected to a common DC bus. It can control power flow in medium voltage (MV) distribution networks without the need for interfacing transformers. Hence there is a significant reduction in size and cost compared to a conventional UPFC. This paper investigates the operating range of a transformer‐less UPFC in an MV distribution network and the required power ratings of the series and shunt converters. The results showed that a transformer‐less UPFC is able to provide active power control using partially rated converters. However, its ability to control reactive power is limited by the current ratings of the converters. The analysis was verified using software simulation and hardware experiment.https://doi.org/10.1049/gtd2.12730distribution networksflexible alternating current transmission system (FACTS)power controlpower electronicsvoltage‐source convertors
spellingShingle Mohamed A. Abdelrahman
Sheng Wang
Wenlong Ming
Jianzhong Wu
Nick Jenkins
Transformer‐less unified power flow controller in medium voltage distribution networks
IET Generation, Transmission & Distribution
distribution networks
flexible alternating current transmission system (FACTS)
power control
power electronics
voltage‐source convertors
title Transformer‐less unified power flow controller in medium voltage distribution networks
title_full Transformer‐less unified power flow controller in medium voltage distribution networks
title_fullStr Transformer‐less unified power flow controller in medium voltage distribution networks
title_full_unstemmed Transformer‐less unified power flow controller in medium voltage distribution networks
title_short Transformer‐less unified power flow controller in medium voltage distribution networks
title_sort transformer less unified power flow controller in medium voltage distribution networks
topic distribution networks
flexible alternating current transmission system (FACTS)
power control
power electronics
voltage‐source convertors
url https://doi.org/10.1049/gtd2.12730
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AT wenlongming transformerlessunifiedpowerflowcontrollerinmediumvoltagedistributionnetworks
AT jianzhongwu transformerlessunifiedpowerflowcontrollerinmediumvoltagedistributionnetworks
AT nickjenkins transformerlessunifiedpowerflowcontrollerinmediumvoltagedistributionnetworks