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Quantifying power and energy fluctuations of photovoltaic systems

Maitanova, Nailya and Schlüters, Sunke and Hanke, Benedikt and Maydell, Karsten and Agert, Carsten (2022) Quantifying power and energy fluctuations of photovoltaic systems. Energy Science and Engineering. Wiley. doi: 10.1002/ese3.1285. ISSN 2050-0505.

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Official URL: https://onlinelibrary.wiley.com/doi/10.1002/ese3.1285


The high share of power generation based on fluctuating renewable energy sources, especially wind and solar, has increased the levels of variability and uncertainty in power systems. The aim of this study is to develop a method for quantifying the variability of photovoltaic (PV) systems. The developed method investigates the power measurements of a PV system and quantifies its power and energy fluctuations in three steps. The first includes a classification of days into three classes according to the variability and power output of the PV system. The second consists of computing the empirical cumulative distribution functions of PV power ramps for the given classes. The third calculates the PV daily energy fluctuations based on predicted PV power output. This method of PV variability quantification was then applied to seven rooftop PV systems in different locations that feature different installed capacities, years of installation, orientations and solar cell types. The testing of this method indicates that it can be used to quantify the power and energy fluctuations of different PV systems, independent of their locations and technical characteristics. The proposed method was developed as part of a general approach for quantifying the flexibility potential of buildings and city districts with PV systems.

Item URL in elib:https://elib.dlr.de/192422/
Document Type:Article
Title:Quantifying power and energy fluctuations of photovoltaic systems
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Maitanova, NailyaUNSPECIFIEDhttps://orcid.org/0000-0003-1287-8139UNSPECIFIED
Schlüters, SunkeUNSPECIFIEDhttps://orcid.org/0000-0002-2186-812XUNSPECIFIED
Hanke, BenediktUNSPECIFIEDhttps://orcid.org/0000-0001-7927-0123UNSPECIFIED
Maydell, KarstenUNSPECIFIEDhttps://orcid.org/0000-0003-0966-5810UNSPECIFIED
Agert, CarstenUNSPECIFIEDhttps://orcid.org/0000-0003-4733-5257UNSPECIFIED
Journal or Publication Title:Energy Science and Engineering
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Keywords:energy fluctuations, photovoltaic variability, power fluctuations, power ramps
HGF - Research field:Energy
HGF - Program:Energy System Design
HGF - Program Themes:Digitalization and System Technology
DLR - Research area:Energy
DLR - Program:E SY - Energy System Technology and Analysis
DLR - Research theme (Project):E - Energy System Technology
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems > Energy System Technology
Deposited By: Maitanova, Nailya
Deposited On:15 Dec 2022 12:06
Last Modified:15 Dec 2022 12:06

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