Design of Fuzzy-neuro Controller Used to a Synchronous Generator Excitation Control System

Stability of synchronous generator output voltage and frequency has the important effect to the power supply quality.A fuzzy-neuro controller was designed to stabilize the frequency and voltage output of a synchronous generator.The structure of the proposed control system consists of two PI fuzzy controllers and two neural networks.With this control scheme the difficulty of fine tuning the scale factors of the fuzzy controller is reduced.Simulation results show that the system is robust to drastic changes on the load.