Efficiency diagnosis and optimization in distributed solar plants

Ren, L; Zhang, S; Li, L; Xu, X; Zhang, Y; Wang, F

Efficiency diagnosis and optimization in distributed solar plants

Ren, L Zhang, S Li, L

Xu, X Zhang, Y Wang, F

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Energy for Sustainable Development, 2021, 63, pp. 24-32
Issue Date:: 2021-08-01

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Field	Value	Language
dc.contributor.author	Ren, L
dc.contributor.author	Zhang, S
dc.contributor.author	Li, L https://orcid.org/0000-0001-8485-2216
dc.contributor.author	Xu, X
dc.contributor.author	Zhang, Y
dc.contributor.author	Wang, F
dc.date.accessioned	2022-04-19T22:23:47Z
dc.date.available	2022-04-19T22:23:47Z
dc.date.issued	2021-08-01
dc.identifier.citation	Energy for Sustainable Development, 2021, 63, pp. 24-32
dc.identifier.issn	0973-0826
dc.identifier.issn	2352-4669
dc.identifier.uri	http://hdl.handle.net/10453/156471
dc.description.abstract	Distributed solar plants are widely used in the power supply of the factories and the residences. To increase the power generation, it is inevitable to model the efficiency of the distributed solar plant and diagnose its efficiency performance. In this paper, a practical 3 MW distributed solar plant is taken as an example. The data analysis reveals the performance ratio (PR) of the plant is around 59%, which is much lower than the recommend value 75%. The efficiency diagnosis also shows that the conventional design method, which is used to determine the module quantity in a photovoltaic (PV) array, has its limitation. This method may lead to the voltage mismatch between the desired operation point of the PV array and the connected inverter, which degrades the performance of maximum power point tracking (MPPT) of the PV system. In the conventional design, the tilted angle of the PV modules is chosen based on the maximum irradiation that the modules can reach. However, the maximum irradiation on PV modules does not necessarily means the maximum electricity yield. Therefore, a new design methodology that optimizes the module quantity and the tilted angle of PV modules in the solar plant is proposed in this paper. Simulation results verify the effectiveness of the proposed method.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Energy for Sustainable Development
dc.relation.isbasedon	10.1016/j.esd.2021.05.001
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	09 Engineering, 16 Studies in Human Society
dc.subject.classification	Energy
dc.title	Efficiency diagnosis and optimization in distributed solar plants
dc.type	Journal Article
utslib.citation.volume	63
utslib.for	09 Engineering
utslib.for	16 Studies in Human Society
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2022-04-19T22:23:45Z
pubs.publication-status	Published
pubs.volume	63

Abstract:

Distributed solar plants are widely used in the power supply of the factories and the residences. To increase the power generation, it is inevitable to model the efficiency of the distributed solar plant and diagnose its efficiency performance. In this paper, a practical 3 MW distributed solar plant is taken as an example. The data analysis reveals the performance ratio (PR) of the plant is around 59%, which is much lower than the recommend value 75%. The efficiency diagnosis also shows that the conventional design method, which is used to determine the module quantity in a photovoltaic (PV) array, has its limitation. This method may lead to the voltage mismatch between the desired operation point of the PV array and the connected inverter, which degrades the performance of maximum power point tracking (MPPT) of the PV system. In the conventional design, the tilted angle of the PV modules is chosen based on the maximum irradiation that the modules can reach. However, the maximum irradiation on PV modules does not necessarily means the maximum electricity yield. Therefore, a new design methodology that optimizes the module quantity and the tilted angle of PV modules in the solar plant is proposed in this paper. Simulation results verify the effectiveness of the proposed method.

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http://hdl.handle.net/10453/156471