Dynamic behavior of a three-phase self-excited induction generator for single-phase power generation

Abstract

The inherent advantages of three-phase self-excited induction generators have resulted in their use in renewable energy applications. A practical use for single-phase power generation from three-phase induction generators is the extention of the flexibility and range of application of such generators. Previous work in this field has been limited to steady-state operating conditions. The main objective of this paper is to investigate the transient behavior of the three-phase self-excited induction generator (SEIG) for single-phase power generation. The dynamic model of asymmetrical excitation configuration of a three-phase SEIG is developed, based on stationary reference frame d–q axes theory. The effect of cross saturation is also incorporated in the model. Results of simulation and experimental recordings are compared for the dynamic conditions such as initiation of self excitation, load perturbation and short circuit. The suitability of the scheme for constant-power application is also discussed.