Direct Torque Control Strategy for a Variable Speed Wind Energy Conversion System Associated to a Flywheel Energy Storage System

In this paper, we present a variable speed wind induction generator associated to a flywheel energy storage system. Direct torque control strategy for an induction generator used in the flywheel energy storage system, is applied. Both rotor flux and DC bus voltage are regulated by the applied of the standard switching table for an operation in the 4 quadrants. This system is used for improving the quality of the electric power delivered by the wind generator. The proposed system with DTC control strategy is validated through simulations. The obtained results are presented and discussed.