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Exploiting PV Inverters to Support Local Voltage—A Small-Signal Model / Meghdad Fazeli; Janaka B. Ekanayake; Paul M. Holland; Petar Igic

IEEE Transactions on Energy Conversion, Volume: 29, Issue: 2, Pages: 453 - 462

Swansea University Author: Fazeli, Meghdad

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Abstract

As penetration of distributed generation increases, the electrical distribution networks may encounter several challenges mainly related to voltage control. The situation may deteriorate in case of a weak grid connected to an intermittent source such as photovoltaic (PV) generation. Fast varying sol...

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Published in: IEEE Transactions on Energy Conversion
ISSN: 0885-8969 1558-0059
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa17304
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first_indexed 2014-02-13T02:30:01Z
last_indexed 2018-05-09T18:46:24Z
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spelling 2018-05-09T14:11:57Z v2 17304 2014-02-12 Exploiting PV Inverters to Support Local Voltage—A Small-Signal Model Meghdad Fazeli Meghdad Fazeli true 0000-0003-1448-5339 false b7aae4026707ed626d812d07018a2113 9dc4b725bd3fcd6fb8a421036ef8e43e NZnaY4nQ83aRogdSuNamT9yvqZQRJmUl2lxhnzSZE7o= 2014-02-12 EEN As penetration of distributed generation increases, the electrical distribution networks may encounter several challenges mainly related to voltage control. The situation may deteriorate in case of a weak grid connected to an intermittent source such as photovoltaic (PV) generation. Fast varying solar irradiance can cause unacceptable voltage variations that may not be easily compensated by slow-responding utility equipment. The PV inverter can be used to control the grid voltage by injecting/absorbing reactive power. A small-signal model is derived in order to study the stability of a PV inverter exchanging reactive power with the grid. This paper also proposes a method that utilizes the available capacity of the PV inverter to support the grid voltage without violating the rating of the inverter and the maximum voltage that the inverter's switching device can withstand. The method proposed in this paper is validated using PSCAD/EMTDC simulations. Journal article IEEE Transactions on Energy Conversion 29 2 453 462 0885-8969 1558-0059 0 6 2014 2014-06-01 10.1109/TEC.2014.2300012 College of Engineering Engineering CENG EEN None None 2018-05-09T14:11:57Z 2014-02-12T12:40:54Z College of Engineering Engineering Meghdad Fazeli 1 Janaka B. Ekanayake 2 Paul M. Holland 3 Petar Igic 4
title Exploiting PV Inverters to Support Local Voltage—A Small-Signal Model
spellingShingle Exploiting PV Inverters to Support Local Voltage—A Small-Signal Model
Fazeli, Meghdad
title_short Exploiting PV Inverters to Support Local Voltage—A Small-Signal Model
title_full Exploiting PV Inverters to Support Local Voltage—A Small-Signal Model
title_fullStr Exploiting PV Inverters to Support Local Voltage—A Small-Signal Model
title_full_unstemmed Exploiting PV Inverters to Support Local Voltage—A Small-Signal Model
title_sort Exploiting PV Inverters to Support Local Voltage—A Small-Signal Model
author_id_str_mv b7aae4026707ed626d812d07018a2113
author_id_fullname_str_mv b7aae4026707ed626d812d07018a2113_***_Fazeli, Meghdad
author Fazeli, Meghdad
author2 Meghdad Fazeli
Janaka B. Ekanayake
Paul M. Holland
Petar Igic
format Journal article
container_title IEEE Transactions on Energy Conversion
container_volume 29
container_issue 2
container_start_page 453
publishDate 2014
institution Swansea University
issn 0885-8969
1558-0059
doi_str_mv 10.1109/TEC.2014.2300012
college_str College of Engineering
hierarchytype
hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 0
active_str 1
description As penetration of distributed generation increases, the electrical distribution networks may encounter several challenges mainly related to voltage control. The situation may deteriorate in case of a weak grid connected to an intermittent source such as photovoltaic (PV) generation. Fast varying solar irradiance can cause unacceptable voltage variations that may not be easily compensated by slow-responding utility equipment. The PV inverter can be used to control the grid voltage by injecting/absorbing reactive power. A small-signal model is derived in order to study the stability of a PV inverter exchanging reactive power with the grid. This paper also proposes a method that utilizes the available capacity of the PV inverter to support the grid voltage without violating the rating of the inverter and the maximum voltage that the inverter's switching device can withstand. The method proposed in this paper is validated using PSCAD/EMTDC simulations.
published_date 2014-06-01T04:18:07Z
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score 10.847605