Vector control strategy for maximum wind-power extraction of a grid-connected wind-driven Brushless Doubly-Fed Reluctance Generator

This paper proposes a vector-control (power-winding flux orientation) strategy for maximum wind-power extraction of a grid-connected wind-driven Brushless Doubly-Fed Reluctance Generator (BDFRG) system. The adopted generator has two stator windings namely; power winding, directly connected to the grid, and control winding, connected to the grid through a bi-directional converter. In addition, a unity power-factor operation is also provided based on the proposed vector-control strategy. Moreover, a soft starting method is suggested to avoid the over-current of the bi-directional converter. A sample of the obtained simulation results is presented to check the effectiveness of the proposed strategy.