Fluctuations in instantaneous clearness index: Analysis and statistics

Analysis and synthesis of the variability of irradiance and PV power time series with the wavelet transform

“…The wavelet transform has also been applied to the analysis of solar irradiance, for example in [3,1214].…”

“…The length of this interval depends on the size of the plant and on the meteorological conditions, (mainly on the wind speed [3]). …”

Classification of daily solar radiation distributions using a mixture of Dirichlet distributions

“…*corresponding author: ted.soubdhan@univ-ag.fr Studies of solar energy systems are traditionally performed using daily or hourly data [1], [2]. Such data do not take into account the fluctuations mentioned previously although it has been shown that the fractional time distribution for instantaneous radiation differs significantly from that obtained with daily values [3] [4].…”

Power output fluctuations in large PV plants

“…The number of studies on the subject is significantly small and it has only been over the last few years when the study of the fluctuations has gradually taken on greater importance. In this way, irradiance fluctuations have been monitored and analysed in countries such as Germany [1], Japan [2], Belgium [3] and Australia [4]. On the other hand, as far as the study of power fluctuations is concerned, the number of studies made is even more limited.…”