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Nowadays, wind turbines implementing doubly fed induction generators (DFIG) occupy the largest share of the wind power market. These machines incorporate the benefits of variable speed generators in a cost-effective way but are very sensitive to grid disturbances and especially to voltage dips. To prevent the damages that grid disturbances can cause to the converter, the machines are equipped with...
This article proposes a method to enable variable speed wind turbine primary regulation. The method consists of adjusting the power-speed curve of the turbine to the grid frequency, thus varying the percentage of maximum power available injected to the grid. This is achieved by operating at rotational speed different from the optimal, and not controlling the pitch angle. Two practical implementations...
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