-5/3 Kolmogorov Turbulent Behaviour and Intermittent Sustainable Energies
Résumé
The massive integration of sustainable energies into electrical grids (non-interconnected
or connected) is a major problem due to their stochastic character revealed by strong
fluctuations at all scales. In this paper, the scaling behaviour or power law correlations
and the nature of scaling behaviour of sustainable resource data such as flow velocity,
atmospheric wind speed, solar global solar radiation and sustainable energy such as,
wind power output, are highlighted. For the first time, Fourier power spectral densities
are estimated for each dataset. We show that the power spectrum densities obtained are
close to the 5/3 Kolmogorov spectrum. Furthermore, the multifractal and intermittent
properties of sustainable resource and energy data have been revealed by the concavity
of the scaling exponent function. The proposed analysis frame allows a full description
of fluctuations of processes considered. A good knowledge of the dynamic of fluctua-
tions is crucial to management of the integration of sustainable energies into a grid.