RES FED high gain DC-DC converter with closed loop control for induction motor drive

Renewable energy sources (RES's) is the major source of electrical energy in future, the available renewable energy systems are solar, wind, fuel cell out of these solar system is most popularly used because this source hugely available in nature, this renewable energy source (RES) is most in demand for agricultural, industrial applications. In the agricultural field renewable energy source (RES) is feeding the motor, to have high efficiency for the motor. Motor is design for high voltage, where as to have high efficiency for solar system it is designed for low voltage. SO we need low voltage to high voltage converter. Various high voltage gain dc-dc converters are proposed in the literature out of those hybrid boost converter is chosen because of its simplicity and high voltage gain. This paper mainly proposes the integration of PV system with dc-dc converter and dc-ac inverter feeding an induction motor drive. The converter is controlled on closed loop to maintain output voltage constant. Even inputs sun radiations are varying. A Matlab/ Simulink models are developed for high gain dc-dc converter drive applications.