Dynamic Modelling and Control of Multiphase Doubly Fed Induction Generator in Wind Turbine Systems

For the purpose of increasing the availability and redundancy of wind turbine systems especially offshore ones, this paper investigates dynamic modelling and control of a new multiphase doubly fed induction generator. The six-phase asymmetric winding with one neutral point has been considered, due to its advantages in the faulty conditions and less harmonic content compared to the symmetric 6-phase windings. The field-oriented control strategy is adopted to study the behavior of active and reactive power in the normal generating condition.