The dynamic characteristics of an isolated self-excited induction generator driven by a wind turbine

The analysis of self-excited induction generator (SEIG) starts from its magnetizing inductance. The value of magnetizing inductance at very low terminal voltage is one of the key factors for self excitation. This paper presents the effect of magnetizing inductance on self-excitation and describes the loading analysis of an isolated induction generator. It also describes how the operating frequency and generated voltage are affected by the change in operating slip value. Wind powered self-excited induction generators (SEIG) have an input wind which is not controllable, but they can be set to operate within a given variation of speed. The experimental and simulated results for a dynamic generated voltage, frequency, stator current and power are presented.