2011
DOI: 10.1002/pip.1063
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From irradiance to output power fluctuations: the PV plant as a low pass filter

Abstract: The power generated by large grid-connected photovoltaic (PV) plants depends greatly on the solar irradiance. This paper studies the effects of the solar irradiance variability analyzing experimental 1-s data collected throughout a year at six PV plants, totaling 18 MWp. Each PV plant was modeled as a first order filter function based on an analysis in the frequency domain of the irradiance data and the output power signáis. An empiric expression which relates the filter parameters and the PV plant size has be… Show more

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Cited by 127 publications
(115 citation statements)
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“…Recent studies of PV-related variability have analyzed power spectra of PV systems and solar irradiance (Calif et al, 2013;Curtright and Apt, 2008;Klima and Apt, 2015;Lave and Kleissl, 2010;Marcos et al, 2011a;Tabar et al, 2014;Yordanov et al, 2013b), compared power fluctuations from specific PV plants with corresponding irradiance measurements Marcos et al, 2011a;van Haaren et al, 2014), and characterized power variability as a function of PV plant…”
Section: Introductionmentioning
confidence: 99%
“…Recent studies of PV-related variability have analyzed power spectra of PV systems and solar irradiance (Calif et al, 2013;Curtright and Apt, 2008;Klima and Apt, 2015;Lave and Kleissl, 2010;Marcos et al, 2011a;Tabar et al, 2014;Yordanov et al, 2013b), compared power fluctuations from specific PV plants with corresponding irradiance measurements Marcos et al, 2011a;van Haaren et al, 2014), and characterized power variability as a function of PV plant…”
Section: Introductionmentioning
confidence: 99%
“…As can be seen, the frequency distributions are very similar. A more detailed description of this model can be found in [10]. …”
Section: Fluctuations In the Frequency Domainmentioning
confidence: 99%
“…In this context, the same database was used in several works for effectively characterising PV power fluctuations and proposing first techniques for mitigating them by means of BESS (Marcos et al, 2014b(Marcos et al, , 2011b. Therefore, its choice for the present work is a good decision as its validity in this research topic is widely contrasted.…”
Section: Real Pv Plant Description and Associated Databasementioning
confidence: 99%
“…It must be pointed out that the model demonstrates that the occurrence of medium-to-strong size fluctuations during a yearly operation of a utility-scale PV plant is very low. Besides, with those results the authors propose an interesting model that predicts the output PV power of a PV plant using data of incident irradiance, which is explained in (Marcos et al, 2011b). The model is a low pass filter of the incident irradiance that smooths down high frequency fluctuations, whose cut-off frequency is in function of the surface area of the PV plant.…”
Section: Pv Power Fluctuations Characterisationmentioning
confidence: 99%
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