Power Generation using DC Driven Self-Excited Induction Generator Supplying DC Load

Abstract-This paper gives out the implementation of wind energy system which is becoming one of the solutions for energy crisis since it is safe, inexhaustible, environmentally friendly and is capable of supplying significant amount of power. The proposed system employs an induction generator driven by a DC motor that has been connected to a dc load through a threephase diode bridge rectifier along with a control system. The squirrel cage induction generator with capacitor excitation known as Self-Excited Induction Generator (SEIG) has been employed which is suitable for generating low power and can be used mainly for small scale wind generators. In this paper, steady state and dynamic analysis of SEIG has been carried out using d-q reference frame. The rectified output has been given to a buck converter and connected to a dc load. To maintain the required output voltage at the output terminals, PID controller has been employed which determines the duty cycle of the converter. The system’s simplicity in analyzing and maintaining of output are the major advantages. The system proposed in this paper has been simulated using MATLAB/SIMULINK.