Journal
ENERGIES
Volume 14, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/en14092663
Keywords
remote sensing; short-term forecast; wind power ramps
Categories
Funding
- Australian Renewable Energy Agency (ARENA) [2018/ARP16]
- Department of Mechanical Engineering at The University of Melbourne
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This study developed and tested two novel wind power forecasting methods based on LiDAR measurements, showing superior performance compared to traditional benchmark methods. This highlights the potential of remote sensing instruments for short-term wind power forecasting applications.
It remains unclear to what extent remote sensing instruments can effectively improve the accuracy of short-term wind power forecasts. This work seeks to address this issue by developing and testing two novel forecasting methodologies, based on measurements from a state-of-the-art long-range scanning Doppler LiDAR. Both approaches aim to predict the total power generated at the wind farm scale with a five minute lead time and use successive low-elevation sector scans as input. The first approach is physically based and adapts the solar short-term forecasting approach referred to as smart-persistence to wind power forecasting. The second approaches the same short-term forecasting problem using convolutional neural networks. The two methods were tested over a 72 day assessment period at a large wind farm site in Victoria, Australia, and a novel adaptive scanning strategy was implemented to retrieve high-resolution LiDAR measurements. Forecast performances during ramp events and under various stability conditions are presented. Results showed that both LiDAR-based forecasts outperformed the persistence and ARIMA benchmarks in terms of mean absolute error and root-mean-squared error. This study is therefore a proof-of-concept demonstrating the potential offered by remote sensing instruments for short-term wind power forecasting applications.
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