Analysis of the Double Output Induction Generator Using Direct Three-phase Model Part I - Commutation Angle Analysis

This paper investigates the overlap angle of the bridge rectifier for the variable speed constant frequency double output induction generator VSCF-DOIG that has a dc-link converter in its rotor circuit. A direct three-phase model for the VSCF-DOIG during the commutation and interlude intervals is set forth. This model takes into consideration the machine resistances, mutual inductances and machine electric transients. Using this model, the overlap angle for different slip values was found.