Design of controller for wind driven self-excited induction generator with battery storage for stand-alone application

The 3-Φ self-excited induction generator driven by wind energy source is suitable for stand-alone applications. For such an application, the minimum excitation capacitance required for self-excitation of 3-Φ induction generator is taken up in this work and the detailed analysis is carried out to determine the range of wind speed variation and consumer demand for the designed capacitance value. An electronic load controller is designed to maintain the load voltage constant for these variations. The excess power resulting as a consequence of rise in load voltage due to variation in load is pumped to dump load. Instead of wasting the power to the dump load, a battery is used to utilize the power. Exhaustive simulations have been carried out for such a scheme and the results have been presented in this paper.