Robust microgrids for distribution systems with high solar photovoltaic penetration

A microgrid is an appropriate concept for urban areas with high penetration of renewable power generation, which improves the reliability and efficiency of the distribution network at the consumer premises to meet various loads such as domestic, industrial, and agricultural types. Microgrids compris...

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Main Authors: W.E.P. Sampath Ediriweera, N.W.A. Lidula, H. Dayan B.P. Herath
Format: Article
Language:English
Published: Polish Academy of Sciences 2023-09-01
Series:Archives of Electrical Engineering
Subjects:
Online Access:https://journals.pan.pl/Content/128368/PDF/art14_int.pdf
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author W.E.P. Sampath Ediriweera
N.W.A. Lidula
H. Dayan B.P. Herath
author_facet W.E.P. Sampath Ediriweera
N.W.A. Lidula
H. Dayan B.P. Herath
author_sort W.E.P. Sampath Ediriweera
collection DOAJ
description A microgrid is an appropriate concept for urban areas with high penetration of renewable power generation, which improves the reliability and efficiency of the distribution network at the consumer premises to meet various loads such as domestic, industrial, and agricultural types. Microgrids comprising inverter-based and synchronous generator-based distribution generators can lead to the instability of the system during the islanded mode of operation. This paper presents a study on designing stable microgrids to facilitate higher penetration of solar power generation into a distribution network. Ageneralized small signal model is derived for a microgrid with static loads, dynamic loads, energy storages, solar photovoltaic (PV) systems, and diesel generators, incorporating the features of dynamic systems. The model is validated by comparing the transient curves given by the model and a transient simulator subjected to step changes. The result shows that full dynamic models of complex systems of microgrids can be built accurately, and the proposed microgrid is stable for all the considered loading situations and solar PV penetration levels according to the small signal stability analysis.
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spelling doaj.art-2d9c677295074d5585db0becdf94745e2023-09-18T11:04:24ZengPolish Academy of SciencesArchives of Electrical Engineering2300-25062023-09-01vol. 72No 3https://doi.org/10.24425/aee.2023.146050Robust microgrids for distribution systems with high solar photovoltaic penetrationW.E.P. Sampath Ediriweera0N.W.A. Lidula1H. Dayan B.P. Herath2Department of Electrical Engineering, University of Moratuwa, Moratuwa, Sri LankaDepartment of Electrical Engineering, University of Moratuwa, Moratuwa, Sri LankaColombo City, Ceylon Electricity Board, Sri LankaA microgrid is an appropriate concept for urban areas with high penetration of renewable power generation, which improves the reliability and efficiency of the distribution network at the consumer premises to meet various loads such as domestic, industrial, and agricultural types. Microgrids comprising inverter-based and synchronous generator-based distribution generators can lead to the instability of the system during the islanded mode of operation. This paper presents a study on designing stable microgrids to facilitate higher penetration of solar power generation into a distribution network. Ageneralized small signal model is derived for a microgrid with static loads, dynamic loads, energy storages, solar photovoltaic (PV) systems, and diesel generators, incorporating the features of dynamic systems. The model is validated by comparing the transient curves given by the model and a transient simulator subjected to step changes. The result shows that full dynamic models of complex systems of microgrids can be built accurately, and the proposed microgrid is stable for all the considered loading situations and solar PV penetration levels according to the small signal stability analysis.https://journals.pan.pl/Content/128368/PDF/art14_int.pdfconverterdynamic systemrobustnessstabilitysynchronous generators
spellingShingle W.E.P. Sampath Ediriweera
N.W.A. Lidula
H. Dayan B.P. Herath
Robust microgrids for distribution systems with high solar photovoltaic penetration
Archives of Electrical Engineering
converter
dynamic system
robustness
stability
synchronous generators
title Robust microgrids for distribution systems with high solar photovoltaic penetration
title_full Robust microgrids for distribution systems with high solar photovoltaic penetration
title_fullStr Robust microgrids for distribution systems with high solar photovoltaic penetration
title_full_unstemmed Robust microgrids for distribution systems with high solar photovoltaic penetration
title_short Robust microgrids for distribution systems with high solar photovoltaic penetration
title_sort robust microgrids for distribution systems with high solar photovoltaic penetration
topic converter
dynamic system
robustness
stability
synchronous generators
url https://journals.pan.pl/Content/128368/PDF/art14_int.pdf
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