Читать книгу Wind Energy Handbook - Michael Barton Graham - Страница 43
2.9 Wind speed prediction and forecasting
ОглавлениеBecause of the variable nature of the wind resource, the ability to forecast wind speed some time ahead is often valuable. Such forecasts fall broadly into two categories: predicting short‐term turbulent variations over a timescale of seconds to minutes ahead, which may be useful for assisting with the operational control of wind turbines or wind farms, and longer‐term forecasts over periods of a few hours or days, which may be useful for planning the deployment of other power stations on the network.
Short‐term forecasts necessarily rely on statistical techniques for extrapolating the recent past, whereas the longer‐term forecasts can make use of meteorological methods. A combination of meteorological and statistical forecasts can give very useful predictions of wind farm power output.