Abstract
As a typical clean and renewable energy, wind power is becoming more and more widely used in electrical industry. However, its characteristics of random and intermittent have brought serious problems to the power system, such as voltage fluctuation and insufficient reactive power. Based on the K-means clustering algorithm, this paper classifies the doubly-fed induction generators (DFIG) according to the operation of propeller pitch angle control. At the same time, to obtain the optimal parameter, advanced particle swarm optimization (PSO) is used. Then the dynamic model of DFIG under the network fault condition is built. What is more, the role that crowbar circuit plays in low voltage ride through (LVRT) is discussed. Finally, simulations in DigSILENT verify the model.
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