mohammadreza hojatydana - department of electrical engineering islamic azad university boroujerd -lorestan-iran
mohammadreza alizadehpahlavani - department of electrical engineering malek-ashtar university of technology -tehran-iran

renewable energy sources like wind sun and hydro are considered as a reliable alternative to the traditional energy sources such as oil natural gas or coal.this paper describes modeling and simulations to determine a method for the power performance evaluation of autonomous wind turbine system.A spee control regulator is utilized to control te DC bus voltage.the inverter gate is signals are generated by decoding the hall effect signals of the motor.the three-phase output of the inverter is applied to the permanent magnet synchronous generator block is stator windings.this study shows that the use of resonant controllers ensures the stability of the three=phases source supplying the load which may be unbalanced and subjected to abrupt variations.it also show taht use of PI controller ensures the regulation of DC bus to a rerence voltage.

wind energy-distributed generation-voltage controller-PI conntroller