In this paper, the doubly-fed induction generator (DFIG) model in wind turbine system as a unit of distributed generator is presented. The wind turbine driven by DFIG is a part of distributed generation which feeds ac power to the distribution network. The system is modeled and simulated in the Matlab Simulink environment. The model makes use of rotor reference frame using dynamic vector approach. FLC is applied to rotor side converter for active power control and voltage regulation of wind turbine. Wind turbine and its control unit are described in details. All multi-machine electric power system components and the FLC are simulated in Matlab Simulink software.