A simple method for the steady state performances of self-excited induction generators

Recently, the self-excited induction generators (SEIG) have been widely employed to operate as wind-turbine generators of an isolated power system. This paper proposes a simple method for the steady-state performance characteristics of a SEIG. Unlike the previous method, the proposed method avoids the tedious and erroneous manual work of segregating the real and imaginary components of the complex equation of the model. In this method, the model is formulated in a simple way and then solved using a numerical MATLAB function “fzero”. The effectiveness of this method has been confirmed by comparing on a 0.8-kW induction generator the computed results obtained by the proposed method to those obtained by classical methods.