Wind/Photovoltaic Hybrid Power Generator Based on Fuzzy Control

A new kind of wind/photovoltaic(PV) hybrid generator was designed for effectively and reliably utilizing the renewable resources. It was designed to be an auto-interference controller. To capture the wind and the light in the greatest degree, the method of nonlinear transform of aerodynamic force was used, as well as the theory of brushless double-fed wind generator and the principle of extremum control on solar inverter were adopted. The hierarchical fuzzy controller algorithm was presented for controlling the loading and unloading of wind generators, solar cells and the grid, considering the multi-input and multi-output of the distributed hybrid power system. It's shown by the simulations that: on the premise of utilizing renewable resources to the greatest extent, system can realize the equilibrium between the supply and demand of the electric energy automatically according to its load.