Spatio-temporal Prediction of Wind Speed and Direction by Continuous Directional Regime

Dowell, J. , Weiss, S. and Infield, D. (2014) Spatio-temporal Prediction of Wind Speed and Direction by Continuous Directional Regime. In: 2014 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS), Durham, UK, 07-10 Jul 2014, ISBN 9781479935611 (doi: 10.1109/PMAPS.2014.6960596)

Abstract

This paper proposes a statistical method for 1-6 hour-ahead prediction of hourly mean wind speed and direction to better forecast the power produced by wind turbines, an increasingly important component of power system operation. The wind speed and direction are modelled via the magnitude and phase of a complex vector containing measurements from multiple geographic locations. The predictor is derived from the spatio-temporal covariance which is estimated at regular time intervals from a subset of the available training data, the wind direction of which lies within a sliding range of angles centred on the most recent measurement of wind direction. This is a generalisation of regime-switching type approaches which train separate predictors for a few fixed regimes. The new predictor is tested on the Hydra dataset of wind across the Netherlands and compared to persistence and a cyclo-stationary Wiener filter, a state-of-the-art spatial predictor of wind speed and direction. Results show that the proposed technique is able to predict the wind vector more accurately than these benchmarks on dataset containing 4 to 27 sites, with greater accuracy for larger datasets.

• Item Type: Conference Proceedings
• Additional Information: The authors gratefully acknowledge the Royal Netherlands Meteorological Institute for their supply of meteorological data, and the support of the UK’s Engineering and Physical Sciences Research Council via the University of Strathclyde’s Wind Energy Systems Centre for Doctoral Training, grant number EP/G037728/1.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Browell, Dr Jethro
• Authors: Dowell, J., Weiss, S., and Infield, D.
• College/School: College of Science and Engineering > School of Mathematics and Statistics > Statistics
• ISBN: 9781479935611
• Published Online: 20 November 2014