Analysis of Transient Behavior of a Single-Phase Self-Regulated Self-Excited Induction Generator using a Three-Phase Machine

This paper presents the analysis of transient behavior of a single-phase self-excited induction generator (SEIG) using a three-phase induction machine feeding single-phase inductive load. This scheme has improved voltage regulation. Moreover, since a star-connected stator winding is employed, the waveform of the output voltage becomes sinusoidal. The dynamic model of a single-phase SEIG is developed based on stationary reference frame d-q axes theory, with three capacitors connected in series and parallel with the single-phase inductive load. The effect of cross-saturation is also incorporated in the model. Simulated and experimental results are compared for the different dynamic conditions such as initiation of self-excitation, load perturbation and short-circuit to validate the effectiveness of the proposed approach.