Quantifying power and energy fluctuations of photovoltaic systems

Abstract 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. T...

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Main Authors: Nailya Maitanova, Sunke Schlüters, Benedikt Hanke, Karsten vonMaydell, Carsten Agert
Format: Article
Language:English
Published: Wiley 2022-12-01
Series:Energy Science & Engineering
Subjects:
Online Access:https://doi.org/10.1002/ese3.1285
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author Nailya Maitanova
Sunke Schlüters
Benedikt Hanke
Karsten vonMaydell
Carsten Agert
author_facet Nailya Maitanova
Sunke Schlüters
Benedikt Hanke
Karsten vonMaydell
Carsten Agert
author_sort Nailya Maitanova
collection DOAJ
description Abstract 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.
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spelling doaj.art-73d7bcb1fc864d9da76071f84abc335b2022-12-22T04:42:09ZengWileyEnergy Science & Engineering2050-05052022-12-0110124496451110.1002/ese3.1285Quantifying power and energy fluctuations of photovoltaic systemsNailya Maitanova0Sunke Schlüters1Benedikt Hanke2Karsten vonMaydell3Carsten Agert4Energy Systems Technology Department DLR Institute of Networked Energy Systems Oldenburg GermanyEnergy Systems Technology Department DLR Institute of Networked Energy Systems Oldenburg GermanyEnergy Systems Technology Department DLR Institute of Networked Energy Systems Oldenburg GermanyEnergy Systems Technology Department DLR Institute of Networked Energy Systems Oldenburg GermanyEnergy Systems Technology Department DLR Institute of Networked Energy Systems Oldenburg GermanyAbstract 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.https://doi.org/10.1002/ese3.1285energy fluctuationsphotovoltaic variabilitypower fluctuationspower ramps
spellingShingle Nailya Maitanova
Sunke Schlüters
Benedikt Hanke
Karsten vonMaydell
Carsten Agert
Quantifying power and energy fluctuations of photovoltaic systems
Energy Science & Engineering
energy fluctuations
photovoltaic variability
power fluctuations
power ramps
title Quantifying power and energy fluctuations of photovoltaic systems
title_full Quantifying power and energy fluctuations of photovoltaic systems
title_fullStr Quantifying power and energy fluctuations of photovoltaic systems
title_full_unstemmed Quantifying power and energy fluctuations of photovoltaic systems
title_short Quantifying power and energy fluctuations of photovoltaic systems
title_sort quantifying power and energy fluctuations of photovoltaic systems
topic energy fluctuations
photovoltaic variability
power fluctuations
power ramps
url https://doi.org/10.1002/ese3.1285
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