Wind-driven stand-alone six-phase self-excited induction generator transients under different loading conditions

This paper present the transient performance of an isolated six-phase self-excited induction generator (SPSEIG) driven by a fixed-pitch wind turbine. The approach is based on a wind-turbine model, SPSEIG model and detailed transient behaviour of an SPSEIG for stand-alone power generation, when subjected to sudden switching of balanced/unbalanced R, RL and RLC load for both three-phase winding sets. The computer model has been developed in an arbitrary reference frame. In the d-q axis model, the effects of common mutual leakage inductance between the two three-phase winding sets have been included. The simulation results show a good performance from the system under different loading conditions. While the interaction between the two windings is inevitable and variation of load at one winding set changes the operating conditions at the other winding, the situation is still satisfactory for a wide range of rural resistive loads.