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Active and Reactive Power Control of DFIG used in WECS using PI Controller and Backstepping

In this paper, we present the control of the active and reactive power of the DFIG used in a wind energy conversion system WECS. Two control methods are proposed: vector control using a PI controller and backstepping technique. The performance of each strategy is presented. First, the wind turbine is modeled with extracted power maximization strategy, the DFIG modelization and power converters. Secondly, two control strategies design. The different modelized parts are validated by simulation under the Matlab / Simulink software with a 660kW generator.