Humanity has been harvesting energy from the wind for centuries. The practice goes back at least to 8th century Persia where the first known historical records of windmills came, but likely extends even further back than that. Compared to the vast history of using wind energy directly to do things like mill grain, pump water, saw wood, or produce fabrics, the production of electricity is still relatively new. Despite that, there are some intriguing ways of using wind to produce electricity. Due to the unpredictable nature of wind from moment to moment, using it to turn a large grid-tied generator is not as straightforward as it might seem. Let’s take a look at four types of wind turbine configurations and how each deal with sudden changes in wind speeds.
Predicting the Future
First, though, it is important to note that wind patterns on the order of a year or more in any particular area are well-known and used for the design of wind farms. Furthermore, wind speed forecasts on shorter timescales like a day or a week are also accurate enough to get a very close estimate of power production capabilities on those timescales, although there is a large public misconception that wind isn’t a reliable source of electricity because it doesn’t always blow. Quite the contrary; extremely accurate predictions of average wind speeds are available hours and days in advance because of how good weather forecasting has gotten in the last few decades, allowing generators like fossil fuel plants to scale down production as more wind generation becomes available with plenty of warning.
Brake For Emergency
Even though long- and short-term wind forecasting is extremely robust ..
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