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Fast and reliable modeling of offshore wind generation for adequacy studies
Nguyen, T.-H.; Toubeau, J.-F.; De Jaeger, E.; Vallée, F. (2023). Fast and reliable modeling of offshore wind generation for adequacy studies. IEEE Transactions on Industry Applications 59(6): 7116-7125. https://dx.doi.org/10.1109/TIA.2023.3307076
In: IEEE Transactions on Industry Applications. IEEE: Piscataway. ISSN 0093-9994; e-ISSN 1939-9367, meer
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| Author keywords |
Adequacy; machine learning; offshore wind; VARMA; wake effects |
| Abstract |
Considering the increasing proportion of offshore wind generation in the energy mix, it becomes essential to properly account for aerodynamic effects that impact the power extracted from the wind. Indeed, due to computational constraints, offshore wind energy is currently modelled in a very simple and approximate way in adequacy studies, neglecting important factors such as wake effects. Hence, in this paper, data-driven proxy models are developed for learning the complex relation between free flow wind information and the resulting aggregated output power of wind farms. Those supervised Machine Learning-based models are used as fast and reliable surrogates of wake models, embedding their ability to describe the wind and turbines behavior, but with much lower computational times. These models are then included in an adequacy study built upon sequential Monte-Carlo simulations. The collected results are compared with those obtained with the current simplified modelling approach for offshore generation. We observe the importance of accurately representing intra-farm aerodynamic effects since reliability indices can be significantly underestimated when using the simplified modelling, thus hiding potential stressed conditions within the power system. |
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