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Adaptive virtual resistance load sharing for resistive microgrids / Augustine M. Egwebe; Meghdad Fazeli; Paul Holland

Electric Power Systems Research, Volume: 160, Pages: 17 - 26

Swansea University Author: Fazeli, Meghdad

Abstract

This paper proposes an adaptive virtual resistance load sharing method in αβ frame, where the α-component of the virtual resistance is used to share the active power and the β-component of the virtual resistance is used to share reactive power. Using the proposed method for photovoltaic systems make...

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Published in: Electric Power Systems Research
ISSN: 0378-7796
Published: Elsevier 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa38257
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spelling 2018-09-13T17:41:32Z v2 38257 2018-01-23 Adaptive virtual resistance load sharing for resistive microgrids Meghdad Fazeli Meghdad Fazeli true 0000-0003-1448-5339 false b7aae4026707ed626d812d07018a2113 9dc4b725bd3fcd6fb8a421036ef8e43e NZnaY4nQ83aRogdSuNamT9yvqZQRJmUl2lxhnzSZE7o= 2018-01-23 EEN This paper proposes an adaptive virtual resistance load sharing method in αβ frame, where the α-component of the virtual resistance is used to share the active power and the β-component of the virtual resistance is used to share reactive power. Using the proposed method for photovoltaic systems makes the active and reactive power sharing sensitive to the varying nature of the solar energy. It will be shown that the proposed adaptive active power sharing significantly reduces the energy required from a fossil-fuelled auxiliary generator. The proposed adaptive reactive power sharing reduces the reactive power exchanged with the auxiliary generator and the switching stress on each distributed generator's converter through, seamlessly, reducing the reactive power contribution of the units with higher active power contribution. This is all achieved without any communication between distributed generation units. Whilst the proposed method is also applicable on inductive microgrids, this paper focuses on a resistive microgrid since most microgrids are likely to be located on the low voltage side of the grid (where the network is mainly resistive). Different load sharing methods in a resistive microgrid are also categorized and briefly reviewed to justify the chosen approach in the paper. MATLAB/SIMULINK simulations are used to validate the proposed method. Journal article Electric Power Systems Research 160 17 26 Elsevier 0378-7796 Distributed generation, Microgrids, Virtual resistance, Photovoltaic, Renewable energy sources 0 7 2018 2018-07-01 10.1016/j.epsr.2018.01.022 College of Engineering Engineering CENG EEN None None 2018-09-13T17:41:32Z 2018-01-23T11:53:03Z College of Engineering Engineering Augustine M. Egwebe 1 Meghdad Fazeli 2 Paul Holland 3 0038257-23012018115354.pdf egwebe2018v2.pdf 2018-01-23T11:53:54Z Output 5502995 application/pdf AM true Updated Copyright 12/03/2018 2019-02-18T00:00:00 true eng
title Adaptive virtual resistance load sharing for resistive microgrids
spellingShingle Adaptive virtual resistance load sharing for resistive microgrids
Fazeli, Meghdad
title_short Adaptive virtual resistance load sharing for resistive microgrids
title_full Adaptive virtual resistance load sharing for resistive microgrids
title_fullStr Adaptive virtual resistance load sharing for resistive microgrids
title_full_unstemmed Adaptive virtual resistance load sharing for resistive microgrids
title_sort Adaptive virtual resistance load sharing for resistive microgrids
author_id_str_mv b7aae4026707ed626d812d07018a2113
author_id_fullname_str_mv b7aae4026707ed626d812d07018a2113_***_Fazeli, Meghdad
author Fazeli, Meghdad
author2 Augustine M. Egwebe
Meghdad Fazeli
Paul Holland
format Journal article
container_title Electric Power Systems Research
container_volume 160
container_start_page 17
publishDate 2018
institution Swansea University
issn 0378-7796
doi_str_mv 10.1016/j.epsr.2018.01.022
publisher Elsevier
college_str College of Engineering
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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 1
active_str 1
description This paper proposes an adaptive virtual resistance load sharing method in αβ frame, where the α-component of the virtual resistance is used to share the active power and the β-component of the virtual resistance is used to share reactive power. Using the proposed method for photovoltaic systems makes the active and reactive power sharing sensitive to the varying nature of the solar energy. It will be shown that the proposed adaptive active power sharing significantly reduces the energy required from a fossil-fuelled auxiliary generator. The proposed adaptive reactive power sharing reduces the reactive power exchanged with the auxiliary generator and the switching stress on each distributed generator's converter through, seamlessly, reducing the reactive power contribution of the units with higher active power contribution. This is all achieved without any communication between distributed generation units. Whilst the proposed method is also applicable on inductive microgrids, this paper focuses on a resistive microgrid since most microgrids are likely to be located on the low voltage side of the grid (where the network is mainly resistive). Different load sharing methods in a resistive microgrid are also categorized and briefly reviewed to justify the chosen approach in the paper. MATLAB/SIMULINK simulations are used to validate the proposed method.
published_date 2018-07-01T05:00:25Z
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score 10.868663